Experts in Ship Engine Maintenance
For over six decades, Chris-Marine has specialized in designing, manufacturing, and selling ship engine maintenance equipment for 2- and 4-stroke diesel engines. Their products are known globally for their high quality and user-friendly design.
Precision Grinding for Modern Diesel Engines
Modern 2-stroke and 4-stroke diesel engines operate under extreme pressure and thermal stress. Therefore, sealing surfaces require highly accurate grinding to ensure tight sealing and long-term reliability. Moreover, using engine-tested CBN grinding wheels reduces wear, prevents leakage, and protects critical engine components.
Chris-Marine’s Proven Grinding Solutions
Chris-Marine offers CBN (Cubic Boron Nitride) grinding wheels that are carefully selected, tested, and proven for specific metal alloys, surface finishes, and workloads. Unlike generic grinding wheels, Chris-Marine CBN solutions deliver consistent cutting performance on hardened steel and high-tensile materials. As a result, workshops achieve predictable results and superior surface quality.
Optimized Abrasives and Bonding Systems
CBN is the second hardest abrasive material and excels in demanding engine maintenance tasks. Consequently, Chris-Marine combines CBN abrasives with optimized bond types, including resinoid, metallic, and electroplated bonds, to match each application precisely. This combination ensures controlled material removal, reduced heat generation, and extended wheel life compared to standard aluminium oxide or silicon carbide wheels.
A Professional Alternative to Standard Grinding Wheels
Compared with conventional grinding wheel manufacturers, Chris-Marine provides application-specific CBN wheels engineered for marine and power plant engines. Therefore, engine builders and service workshops rely on Chris-Marine as a high-performance alternative to non-specialized grinding solutions, especially for critical sealing surfaces.
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Available Grinding Wheels:
| Part Number | Dimension DxTxH | Colour | Grinding Machine |
|---|---|---|---|
| 11373-01-01 | 152x15x32 | violet | LBD, 150S |
| 11373-02-01 | 76x30x32 | greyish-brown | LCD |
| 11373-02-02 | 76x30x32 | lightblue | LCD |
| 11373-04-04 | 152x51x32 | brownish-grey | CPS |
| 11373-04-05 | 152x51x32 | greenish-black | LBD, CPS |
| 11373-06-01 | 180x10x32 | white | BFG |
| 11373-07-01 | 178x51x32 | white | BFG |
| 11373-08-09 | 76x40x32 | white | CPL, CPM |
| 11373-08-10 | 76x40x32 | blue | CPL, CPM |
| 11373-10-07 | 15x8x8 | rose | PRG |
| 11373-11-07 | 15x5x8 | rose | PRG |
| 11373-12-02 | 76x10x32 | violet | 75H, HVG |
| 11373-12-03 | 76x10x32 | whitish-grey | 75H, HVG |
| 11373-15-03 | 38x19x6 | gray | MSD |
| 11373-16-04 | 38x19x6 | greyish-blue | HP, PSS |
| 11373-17-02 | 42x13x6 | blue | PSS |
| 11373-18-02 | 25x16x6 | white | MSD |
| 11373-19-01 | 16x13x6 | white | MSD |
| 11373-23-01 | 120x18x32 | white | CPL, CPM |
| 11373-24-02 | 108x18x32 | white | CPL, CPM |
| 11373-25-01 | 10x10x6 | rose | MSD |
| 11373-27-07 | 200x13x32 | blue | BSP |
| 11373-27-08 | 200x13x32 | white | BSP |
| 11373-29-01 | 66x25x25 | lightblue | LCD |
| 11373-33-01 | 75x30x32 | grey | CPL, CPM |
| 11373-38-01 | 32x19x6 | black | CPL, CPM |
Precision Coating Thickness Measurement with CTM
Chris-Marine’s Coating Thickness Measurement tool (CTM) delivers precise readings of coating thickness on both magnetic and non-magnetic base materials. This tool is essential for assessing the remaining lifetime of coated piston rings in 2-stroke engines. With a liner time scale of approximately 1000 Rh and a measurement time of just 15 minutes per liner, CTM provides fast, accurate results.
Key Benefits for Condition-Based Monitoring
CTM is designed for condition-based monitoring of piston rings, ensuring optimal engine performance. It measures non-magnetic coatings on magnetic materials, such as chromium-plated or plasma-coated cast iron, and non-magnetic coatings on non-magnetic materials, like plastic-coated stainless steel. The tool automatically detects the base material’s type, simplifying the process for users.
Compact, user-friendly and enables reliable measurements even in hard-to-reach areas. This makes it a practical choice for in-situ, non-destructive testing, contributing to more efficient maintenance planning.
The CTM combines ease of use with advanced technology, providing accurate measurements and helping optimize engine maintenance strategies.
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Mechanical Crankshaft Deflection Gauge
The Mechanical Crankshaft Deflection Gauge, CONTROLmag® I&II, provides a reliable way to check crankshaft bearing alignment and deflection in all types of engines. Designed for precision and durability, this gauge features robust construction and hardened measuring tips, ensuring accurate measurements across various applications. Its compact design allows easy adjustment of the gauge position, making it user-friendly and efficient.
Versatile and Durable for Engine Maintenance
The CONTROLmag® I&II is equipped to measure crankshaft distortion and, with the optional rounded tips, can also be used to assess cylinder wear. Whether working with smaller or larger engines, the gauge offers two measuring range options to suit your specific needs:
- 21900002: Measuring range of 60 mm – 300 mm
- 21900042: Measuring range of 60 mm – 500 mm
The gauge is packaged in a ready-to-use case, allowing for quick deployment in any setting, from workshops to onboard engine rooms.
By combining precision technology with a durable, versatile design, the Mechanical Crankshaft Deflection Gauge ensures efficient maintenance and reliable engine performance.
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Product Features
- Precision Bearing Alignment: Easily checks crankshaft deflection for accurate alignment.
- Durable Construction: Hardened tips ensure longevity and precision in challenging environments.
- Cylinder Wear Measurement: Optional rounded tips enable the tool to measure cylinder wear as well.
- Easy-to-Adjust: Compact design simplifies adjustment and use in tight spaces.
- Wide Measuring Range: Choose between two options for different engine sizes, ranging from 60 mm to 500 mm.
High-Quality Honing Stones for Cylinder Liner Maintenance
Cylinder liners in 2-stroke and 4-stroke diesel engines operate under constant mechanical and thermal stress. Therefore, accurate honing becomes essential to maintain correct surface geometry and oil retention. Moreover, high-quality cylinder liner honing stones improve liner performance, reduce wear, and extend engine service life.
Proven Diamond and Ceramic Honing Stones
Chris-Marine offers diamond and ceramic honing stones that are carefully selected, tested, and proven across a wide range of marine and power plant engines. Unlike generic honing stones, Chris-Marine solutions deliver predictable material removal and consistent surface roughness. As a result, maintenance teams achieve repeatable results with minimal risk.
Optimized Honing Stone Sequence for Best Results
Successful honing depends on the correct combination of speed, stone pressure, and stroke count. Therefore, Chris-Marine recommends a proven three-step honing sequence. First, a diamond honing stone removes wear edges, glazing, and micro-seizures. Next, a rough ceramic stone eliminates smeared material and improves oil retention. Finally, a fine ceramic stone smooths surface peaks while preserving the liner’s oil-holding structure.
A Professional Alternative to Standard Honing Stones
Compared with conventional honing stone suppliers, Chris-Marine provides engine-specific honing solutions with multiple grain sizes and grades. Consequently, shipowners, engine builders, and service workshops choose Chris-Marine as a premium alternative to non-specialized honing tools.
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If you have any questions or require Honing Stones for your Chris-Marine system.
Available Honing Stones
| Part Number | Grain Size | RA (≈) |
|---|---|---|
| 11373-20-01 | 80 | 0.7-2.0 |
| 11373-20-02 | 80 B | 0.7-2.0 |
| 11373-20-04 | 60 | 1.5-3.0 |
| 11373-20-05 | 60 B | 1.5-3.0 |
| 11373-20-07 | 46 B | 2.0-4.0 |
| 11373-20-10 | 46 B | 2.5-4.5 |
| 11373-20-13 | 46 B | 3.0-5.5 |
| 11373-20-14 | 36 B | 3.0-5.5 |
| 11373-20-16 | 36 B | 0.5-1.5 |
| 11373-20-17 | 220 | 0.7-1.0 |
| 11373-20-20 | 36 B | 3.0-5.5 |
| 11373-20-23 | 36 | 3.0-5.5 |
| 11373-20-26 | 400 | 0.4-0.8 |
| 11373-20-30 | 220 | 0.4-0.1 |
| 11373-20-34 | 220 | 0.4-1.0 |
| 11373-20-35 | 320 | 0.4-1.0 |
| 11373-20-36 | 400 | 0.4-0.8 |
| 11373-20-37 | 500 | 0.4-0.8 |
| 11373-20-39 | 80 | 1.1-1.5 |
| 11373-30-03 | Rough SD252/80 | 3.0-6.0 |
| 11373-30-04 | Medium SD181/100 | 1.5-2.5 |
| 11373-30-05 | Fine SD91/220 | 1.0-2.0 |
| 11373-30-07 | Medium/Fine SD107/180 | 1.2-2.2 |
LEMAG® DI-5 and LEMAG® DI-5C: Efficient Crankshaft Deflection Indicators
Chris-Marine’s LEMAG® electronic crankshaft deflection indicators, the DI-5 and DI-5C, provide time-saving solutions for efficiently checking crankshaft deflection. These tools allow users to identify potential problems early, thus avoiding costly engine repairs.
LEMAG® DI-5: Upgradeable and Reliable
Designed for frequent use, the LEMAG® DI-5 simplifies crankshaft deflection checks, ensuring efficient and reliable operation. Its transducer, combined with invar alloy extension bars, minimizes heat expansion, ensuring accurate results in a variety of conditions. Moreover, the DI-5 is portable, with rechargeable batteries and a durable case that enhances convenience.
A key feature of the DI-5 is its upgradeability. Users can upgrade it to the DI-5C without needing to replace the entire device, ensuring long-term usability and cost efficiency.
LEMAG® DI-5C: Advanced with Data Capabilities
The LEMAG® DI-5C enhances deflection measurement through its built-in microprocessor, allowing users to print and download measurement results directly to a computer. This functionality simplifies data tracking and analysis, making the DI-5C an ideal tool for maintenance teams. The device is supplied with a USB interface connection cable and software, adding even more flexibility.
For those needing cylinder liner measurements, the LEMAG® DI-5C offers an optional ovality kit. This kit allows measurement of cylinder liner ovality for diameters ranging from 180 to 600 mm and strokes up to 870 mm, with larger sizes available upon request.
Key Features:
- Invar alloy extension bars for minimal heat expansion
- Rechargeable batteries and sturdy case for easy portability
- DI-5 upgradeable to DI-5C without full device replacement
- DI-5C’s microprocessor allows printing and downloading of data
- Optional ovality kit for cylinder liner measurements (diameters: 180-600 mm, stroke: up to 870 mm)
Both the LEMAG® DI-5 and DI-5C offer reliable, efficient solutions for engine maintenance, ensuring accurate results and early problem detection.
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LEMAG® ECI: Electronic Cylinder Pressure Indicator for Improved Engine Uptime and Cost Efficiency
The LEMAG® ECI is an advanced electronic cylinder pressure indicator designed to enhance engine uptime while reducing operating costs. It enables technicians to fine-tune, balance, and monitor both auxiliary and main engines, providing performance insights for all large 2- and 4-stroke engines running on natural gas, LPG, or HFO/MDO, as long as they have an indicator valve.
Key Features of LEMAG® ECI
The LEMAG® ECI excels in fine-tuning engine performance and lowering costs. Built to withstand harsh ship and power plant conditions, it allows continuous engine readings without overheating the sensor. By detecting problems early, it prevents costly downtime. Its optional crank angle sensor adds unmatched accuracy, ensuring reliable data.
This device is user-friendly, with an ergonomic handheld unit featuring a large color display. Technicians can confirm measurement success in real time, even while wearing gloves. Results can be transferred to a PC for further analysis or sent to superintendents for comparison with historical or reference data. The intuitive menus and step-by-step graphic instructions make it easy for new operators to handle.
For quality assurance, the LEMAG® ECI can be sent to Chris-Marine Germany for test and calibration, with a renewed certification provided every 12 to 24 months.
Two Configurations to Match Your Engine
LEMAG® ECI
This configuration provides accurate cylinder pressure measurements with automatic TDC detection for MIP and power calculation. It also features misfiring analysis and engine balancing functions. Equipped with a high-quality pressure sensor with a leak-proof, patented design and excellent thermal properties, it ensures precision and durability.
LEMAG® ECI-MS
The ECI-MS version includes the easy-to-mount MS Crank Angle Sensor for high-resolution crank angle measurements, making it ideal for low-speed engines. This ensures precise MIP and cylinder power calculations for optimal engine performance.
Both configurations of the LEMAG® ECI deliver reliable and efficient solutions for monitoring and optimizing engine operations.
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Precision Grinding for Electric Fuel Pumps and Fuel Valves
The Chris-Marine FPG grinding machine is purpose-built for precision grinding of electric fuel pumps and fuel valve components on diesel engines. Thanks to its robust construction and integrated precision features, the FPG delivers high-quality grinding results quickly and consistently. As a result, workshops achieve superior surface finishes compared to conventional fuel pump grinding machines from other manufacturers.
Efficient Workshop Grinding Without Lapping
Unlike many competing fuel valve grinding solutions, the FPG eliminates the need for lapping. Instead, its air-driven precision grinding spindle and fine feed adjustment ensure accurate material removal in a controlled process. Consequently, workshops save time while maintaining repeatable results. Moreover, the electrically driven base combined with an air-driven grinding head provides excellent stability and operator control.
Machine Features for Reliable Results
The FPG supports a wide operating range, making it suitable for professional workshops ashore. In addition, its integrated features enhance productivity and grinding accuracy:
- Air-driven precision grinding spindle
- Fine feed adjustment for controlled grinding
- Diamond dresser mounted on the machine
- Universal grinding wheel for all surface materials
- Integrated cooling water system for thermal stability
Compared to alternative fuel pump and valve grinding machines, these features ensure faster setup, reduced rework, and longer component life.
Compatible with Leading Engine Manufacturers
The FPG grinding machine supports fuel pump and valve components for major engine makers, including Hyundai, MAN B&W, Sulzer, and Wärtsilä. Therefore, it serves as a versatile alternative to brand-specific grinding equipment. By choosing Chris-Marine, workshops benefit from long-term reliability, spare parts availability, and proven expertise in fuel system maintenance.
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Technical Specifications
| Electric power supply | 1 phase 200 - 250 V, 48 - 62 Hz |
|---|---|
| Air supply | 1300 l/min 0.6 - 0.9 MPa (6 - 9 bar or 85 - 130 psi) |
| Power requirement | 0.3 kw |
| Noise level | 75 db (A) / 73 dB (C) |
| Air hose connection | 12.5 mm (1/2”) |
| Weight | 320 kg |
| Max dimensions | W: 1224 mm, H: 506 mm |
High-Pressure Hoses for Marine Applications
OBEL-P high-pressure hydraulic hoses meet the strict requirements of engine manufacturers such as MAN Diesel & Wärtsilä. Therefore, maintenance engineers rely on these hoses for safe and accurate hydraulic operations. Moreover, the low volumetric expansion ensures fast system response, while smooth inner bores minimize pressure loss during operation.
Durable, Flexible, and Safe by Design
OBEL-P hoses feature kink-resistant, steel-reinforced construction combined with abrasion-resistant outer covers. As a result, they deliver long service life even in harsh onboard and workshop environments. Additionally, the small outside diameter and low weight improve handling in confined spaces. High burst pressure, optional protection covers, and 120-degree angled packing surfaces further enhance operational safety.
CEJN Couplings and Nipples
OBEL-P CEJN 116 and 125 series couplings and nipples provide secure, leak-free connections for high-pressure hydraulic systems. Consequently, they match the quality expectations of leading engine builders. Compared with standard hydraulic couplings, OBEL-P CEJN components offer superior durability, precision fit, and chemical resistance.
In summary, our OBEL-P hoses and CEJN couplings provide dependable performance, ensuring safety and efficiency in demanding environments. Choose our high-pressure solutions for unmatched flexibility and durability.
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Product Features
- Pressure Range: Up to 2500 bar
- Low Volumetric Expansion
- High Quality
- Smooth Inner Bores
- Kink-resistant Steel-reinforced Construction
- Abrasion-resistant Covers
- Small Outside Diameter
- Superior Chemical Resistance
Available Hoses & Couplings:
| Part Number | Description |
|---|---|
| 11583-03-00 | Plastic hose ø8/6 |
| 11583-26-00 | Plastic hose ø6/4 |
| 14491-04-00 | Hose |
| 25542-00-00 | Kit push-in fitting |
| 25542-06-00 | Set of Nipples |
| 25542-07-00 | Hose kit |
| 25542-23-00 | Set of nipples DGL |
| 25542-24-00 | Set of couplings GLS-SE |
| B040F001 | Coupling |
Advanced Automatic Honing Machine for Medium-Speed Engines
The Chris-Marine HON A Automatic Honing Machine restores cylinder liner geometry and surface structure on medium-speed diesel engines. Therefore, it helps maintenance teams achieve correct liner profiles and optimal oil retention. Moreover, the electrically driven system operates with less noise than pneumatic alternatives, improving working conditions onboard and in workshops.
Programmable Control for Accurate Cross-Pattern Angles
HON A features automatic stroke control and a programmable handheld PLC controller. Consequently, operators can set and maintain an exact liner cross-pattern angle throughout the honing process. Speed, stroke length, and honing stone pressure remain adjustable during operation, which ensures flexibility and precision at every stage.
Safe, Efficient, and Compatible Honing Operations
The synchronized vertical and rotational movements deliver consistent material removal, while built-in safety limits prevent the honing head from exceeding set turning points. Additionally, HON A works seamlessly with existing Chris-Marine HON S and HON S2 honing heads, allowing easy upgrades without replacing core components.
A Professional Alternative to Pneumatic Honing Machines
Compared with compressed-air honing machines from other brands, HON A delivers lower noise levels, higher accuracy, and automated control. Optional features such as a patented chain slack detector, vibration dampers, and a solid honing cage further enhance safety, productivity, and liner surface quality. Therefore, HON A stands out as a premium alternative to conventional honing solutions.
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| Technical Specification | ||
|---|---|---|
| Power | 3-phase 380-415V 50/60Hz 2kW | |
| Working range | 150 – 670 mm | |
| Surrounding temperature | 0-45°C | |
| Noise level | 80dB(A) | |
| Honing Liquid | We recommend the Chris-Marine honing liquid to achieve optimal honing results. | |
| Honing head | ||
| Working range | Type S 4-arms | Type S2 8-arms |
| 150 – 200 mm | S15/20 | |
| 190 – 230 mm | S19/23 | |
| 210 – 290 mm | S21/29 | |
| 280 – 420 mm | S28/42 | |
| 320 – 500 mm | S32/50 | S2 32/50 |
| 490 – 670 mm | S2 49/67 | |
Flexible Honing Directly on the Engine
The Chris-Marine HON S is a portable pneumatic cylinder liner honing machine designed for efficient on-site use. Therefore, maintenance teams can hone liners directly on the engine or in a honing rig without dismantling major components. Moreover, the system supports liner bores from 150 to 670 mm, making it suitable for a wide range of 2-stroke and 4-stroke diesel engines.
Accurate Honing for Restored Liner Geometry
HON S restores liner shape, removes scuffing, and re-establishes the correct surface cross-pattern. Consequently, piston rings achieve improved oil retention and reduced wear. Variable hoisting speed and exchangeable gearboxes allow operators to fine-tune the cross-angle pattern and honing capacity for each application. pneumatic honing machine
Safe, User-Friendly, and Fully Pneumatic
The machine operates fully on compressed air, although an electric drive unit is available on request. Additionally, the redesigned external control box places speed, stone pressure, reset, and emergency controls in one location, improving safety and ease of use. Automatic stroke control further ensures consistent results throughout the honing process.
A Proven Alternative to Conventional Honing Machines
Compared with standard portable honing machines, HON S offers patented safety features, including an optional chain slack detector and vibration dampers that reduce head wear and liner surface patterns. Optional upgrades such as 8-armed honing heads and a torque wrench kit improve accuracy and productivity. Therefore, HON S stands out as a reliable alternative to generic honing equipment from other manufacturers.
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| Technical Specification | |||
|---|---|---|---|
| Driving unit | |||
| Air pressure | 0.6 – 0.9 MPa (6 – 9 bar or 85 – 130 psi) | ||
| Noise level | 84 dB (A) / 83 dB (C) | ||
| Air hose connection | 16 mm (5/8″) | ||
| Honing stones | We recommend the Chris-Marine Honing stones to achieve optimal honing results | ||
| Hoist, air driven | type 125 | type 250 | |
| Hoisting capacity | 125 kg | 250 kg | |
| Working range | 150 – 500 mm cylinder diameter | 500 – 600 mm cylinder diameter | |
| Stroke | 4.0 m | 4.0 m | |
| Air pressure | 0.4 – 0.6 MPa (4 – 6 bar or 57 – 85 psi) | 0.4 – 0.6 MPa (4 – 6 bar or 57 – 85 psi) | |
| Air consumption | 500 l/min | 500 l/min | |
| Air hose connection | 10 mm (3/8″) | 10 mm (3/8″) | |
| Weight | 10 kg | 11 kg | |
| Honing head | |||
| Working range | Type S 4-arms | Type S2 8-arms | |
| 150 – 200 mm | S15/20 | ||
| 190 – 230 mm | S19/23 | ||
| 210 – 290 mm | S21/29 | ||
| 280 – 420 mm | S28/42 | ||
| 320 – 500 mm | S32/50 | S2 32/50 | |
| 490 – 600 mm | S2 49/67 | ||
| Gearbox | |||
| Cylinder liner diameter | rpm | Air consumption honing machine | Air consumption air driven hoist |
| 150 – 300 mm | 51 | 1500 l/min | 500 l/min |
| 280 – 380 mm | 40 | 1500 l/min | 500 l/min |
| 350 – 500 mm | 34 | 1500 l/min | 500 l/min |
| 450 – 600 mm | 24 | 1500 l/min | 500 l/min |
Portable Hydraulic Power Units for all hydraulic tools.
Fast In-Situ Cylinder Liner Inspection
The Chris-Marine Liner Condition Camera (LCC) enables accurate cylinder liner condition monitoring without removing the cylinder cover or exhaust valve housing. Designed for 2-stroke engines with bore sizes from 480 to 980 mm, the LCC captures high-quality images of the entire liner wall and piston ring pack. As a result, engineers reduce inspection time significantly while improving documentation accuracy compared to traditional borescope inspections.
High-Resolution Imaging for Condition-Based Maintenance
Using the LCC, operators can precisely evaluate liner cleanliness, wear edge formation, honing marks, wave-cut groove extension, and corrosive wear. Moreover, the system clearly documents black lacquering and bore polishing, enabling early detection of abnormal wear. Consequently, maintenance decisions become faster, more reliable, and more cost-efficient than with competing liner condition camera.
Advanced Multi-Camera Technology
The LCC features four integrated cameras that together document the complete running surface. Cameras 1–3 capture slightly overlapping liner wall sectors, while Camera 4 inspects injectors and the exhaust valve area. Additionally, a tablet-mounted camera documents the piston ring pack and top land condition. Thanks to the laser-triggered LED flash system, the LCC collects only relevant images, thereby minimizing battery consumption and unnecessary data storage.
Time-Saving, Heat-Resistant, and Easy to Use
Unlike many alternative cylinder inspection tools, the LCC operates with high-temperature-resistant electronics and batteries, allowing inspections without lowering engine coolant temperature. Therefore, operators save valuable time during routine checks. Furthermore, only combustion chamber venting is required. On average, the system documents one cylinder in approximately 15 minutes, while a fully charged battery set supports up to 14 cylinders per session.
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| Technical specification | |
|---|---|
| Weight | 550 g (camera unit) 9 kg (complete equipment in storage box) |
| Dimensions (L x W x H) | 176 x 78 x 33 mm (camera unit) 510 x 310 x 130 mm (storage box) |
| Camera resolution | 1280 x 1024 pixels per camera (4 cameras included in the camera unit) |
| Power supply | Battery operated Charging equipment included |
| Batteries | Camera unit: 6 Ni MH batteries with a total capacity of 3.6 Wh Operator's unit: 1 Li Ion battery with a capacity of 29.6 Wh |
| Mains supply (chargers) | Camera unit: 100-240 V, 50/60 Hz, 0.35 A Operator's unit: 100-240 V, 50/60 Hz, 0.5 A |
| Ambient air temperature (camera unit) | 0-85°C |
| Cylinder diameter range | 480 to 980 mm |
Fast and Accurate Cylinder Liner Measurements Onboard
The Chris-Marine Liner Diameter Measurement (LDM) system enables precise cylinder liner diameter measurements without removing the cylinder head or exhaust valve housing. Designed for 2-stroke engines with bore sizes from 500 to 980 mm, the LDM measures liner wear and clover-leaf deformation quickly and reliably. As a result, operators save significant time compared to traditional liner measurement methods.
Efficient Condition-Based Liner Maintenance
With the LDM, a single operator can measure one cylinder in approximately one hour, capturing up to 26 measurement levels. In contrast, conventional measurement techniques often require a three-person team and a full working day. Therefore, the LDM significantly reduces downtime, labor costs, and preparation time, making it an efficient alternative to other liner wear measurement tools.
Detect Abnormal Wear and Clover Leafing Early
The LDM accurately identifies non-oval liner wear, including clover leafing caused by slow steaming retrofits, injector erosion, and uneven lubrication. Consequently, engineers can implement corrective actions before damage escalates. Moreover, the system supports continuous liner wear monitoring, ideal for dock preparation and condition-based maintenance strategies. Compared with competing liner measurement systems, the LDM delivers higher accuracy and faster diagnostics.
User-Friendly Design for Onboard and Workshop Use
Chris-Marine offers the LDM in both an easy-to-use onboard version and a workshop version with a rugged case, micrometer set, and calibration rig. In addition, the handheld tablet interface provides remote technical support and software updates. The latest generation also delivers up to 13 hours of continuous operation, further improving usability. The LDM supports MAN B&W, Wärtsilä, and Mitsubishi 2-stroke engines, offering broad compatibility unmatched by many alternative brands.
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| Technical Specifications | |
|---|---|
| Diameter measuring range | 2-stroke engines 500 - 980 mm liner diameters or 4-stroke engines (cylinder cover removed) >=500 mm liner diameters |
| Measurement capability | Cylinder wear (two diametres) and clover leafing (60 radii) |
| Height measuring range | 0-4000 mm |
| Electric power supply | Battery operated (Charging equipment included) |
| Normal measuring time | One cylinder liner (2 diametres/15 levels): 1 Hr |
| Weight complete with case | 20 kg |
LEMAG PEAKmag® Pressure Indicators
The LEMAG PEAKmag® serves as a basic yet essential pressure indicator that measures the maximum ring pressure in internal combustion engines. It protects users by providing accurate readings, especially in cases of excessive cylinder pressure.
Benefits of Using LEMAG PEAKmag®
Utilizing the LEMAG PEAKmag® offers several advantages. First, it optimizes engine performance by ensuring that the engine operates within safe pressure limits. Consequently, this helps prevent unbalanced operation, which can lead to significant wear and tear on engine components. Additionally, it effectively avoids uncontrolled vibrations, reducing the risk of costly breakdowns. Most importantly, the indicator helps maintain efficiency, thereby optimizing fuel consumption.
In summary, the LEMAG PEAKmag® is a robust and reliable tool that enhances engine efficiency and safety. Choose this pressure indicator for precise monitoring and optimal performance in internal combustion engines.
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Product Features
The indicator boasts an impressive pressure range of up to 250 bar (3000 psi). This wide range allows for versatile applications across various engine types. Key features include:
- Optimized Engine Performance: Ensures the engine operates efficiently within safe pressure limits.
- Fuel Consumption Efficiency: Helps maintain optimal fuel usage by preventing pressure-related inefficiencies.
- Prevention of Unbalanced Engine Operation: Displays critical data to avoid uneven performance across engine components.
- Loss of Efficiency Prevention: Minimizes the risk of decreased performance due to pressure anomalies.
- Vibration Control: Aids in avoiding uncontrolled vibrations, thus protecting engine integrity.
- Easy Handling: Designed for user convenience, ensuring simple operation in any environment.
- Safe and Reliable: Built to meet stringent safety standards, providing peace of mind during use.
- German Precision Technology: Manufactured using advanced techniques to guarantee high-quality performance.
LEMAG® LS Pressure Indicators
The LEMAG® LS is a fundamental pressure indicator designed to measure the maximum ring pressure in internal combustion engines. Built with user safety in mind, it provides precise readings to protect against excessive cylinder pressure.
Benefits of Using LEMAG® LS
Using the LEMAG® LS offers several key advantages. It helps optimize engine performance by ensuring balanced pressure levels, preventing engine imbalance and wear. Additionally, it reduces uncontrolled vibrations, which minimizes the risk of breakdowns and costly repairs. By maintaining consistent engine pressure, the indicator ensures efficient operation and helps optimize fuel consumption.
In conclusion, the LEMAG® LS is a reliable and robust pressure indicator, designed to optimize internal combustion engine performance while ensuring safety and fuel efficiency. Choose Chris-Marine for accurate pressure measurement and dependable engine monitoring.
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If you have any questions or require spare parts for your Chris-Marine system.
Product Features
The indicator boasts an impressive pressure range of up to 250 bar (3000 psi). This wide range allows for versatile applications across various engine types. Key features include:
- Optimized Engine Performance: Ensures the engine operates efficiently within safe pressure limits.
- Fuel Consumption Efficiency: Helps maintain optimal fuel usage by preventing pressure-related inefficiencies.
- Prevention of Unbalanced Engine Operation: Displays critical data to avoid uneven performance across engine components.
- Loss of Efficiency Prevention: Minimizes the risk of decreased performance due to pressure anomalies.
- Vibration Control: Aids in avoiding uncontrolled vibrations, thus protecting engine integrity.
- Easy Handling: Designed for user convenience, ensuring simple operation in any environment.
- Safe and Reliable: Built to meet stringent safety standards, providing peace of mind during use.
- German Precision Technology: Manufactured using advanced techniques to guarantee high-quality performance.
Expertise in Ship Engine Maintenance
For over 60 years, Chris-Marine has been a global leader in marine engine maintenance solutions for 2- and 4-stroke diesel engines. The company designs and manufactures professional ship engine maintenance tools known for high quality, precision, and user-friendly operation. Compared to other engine maintenance equipment manufacturers, Chris-Marine stands out for reliability, innovation, and long service life.
With sales offices worldwide, including Europe, Asia, and the Americas, Chris-Marine provides local support and fast service. In addition, their fully equipped workshops in key maritime hubs ensure expert assistance, making Chris-Marine a trusted alternative to other marine engine maintenance tool suppliers.
Future-Ready Engine Maintenance Solutions
Chris-Marine employs over 100 specialized experts dedicated to improving engine performance, efficiency, and sustainability. Their solutions help operators reduce maintenance time, lower operating costs, and extend engine lifespan, while minimizing environmental impact.
Under the trusted brands Chris-Marine®, Obel-P®, and LEMAG®, the company offers comprehensive marine engine maintenance product portfolios, including:
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Engine Monitoring Systems
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Engine Cleaning Equipment
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Grinding & Machining Tools
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Fuel System Maintenance Solutions
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Hydraulic Power Packs
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Accessories & Consumables
These solutions position Chris-Marine as a leading alternative to other ship engine maintenance equipment manufacturers, delivering proven performance across the global maritime industry.
Contact Us for More Information
If you have any questions or require spare parts for your Chris-Marine system.
