RP75 Rack Puller for Reliable Diesel Engine Shutdown

The RP75 Rack Puller is a dependable shutdown actuator designed to provide a strong and consistent pull force for diesel engines that require mechanical fuel rack control. Built for safety-critical applications, the RP75 Rack Puller delivers fast, fail-safe shutdown when triggered by connected monitoring devices, making it ideal for generators, marine engines, pumps, and industrial equipment requiring reliable emergency stop solutions.

10–30lbf Operating Force

12 / 24VDC Coil Voltage

48mm Travel Length

4ft Cable Length

Key Features Section

Strong Mechanical Pull Force: Provides up to 30 lbf of pulling force, ensuring fast and reliable shutdown for diesel engines using mechanical fuel rack or air intake control.
Fail-Safe Spring-Powered Operation: Uses a spring-loaded mechanism that instantly activates during unsafe engine conditions, offering dependable shutdown even during electrical failure.
Electromagnetic Latching: The internal electromagnet securely holds the spring in place and ensures precise triggering when the safety device sends a shutdown signal.
Cable or Chain Linkage Support: Compatible with both cable and chain connections, with multiple cable length options for easy installation across various engine types.
12V and 24V Voltage Options: Available in two voltage variants, making the RP75 suitable for a wide range of industrial and marine electrical systems.
Durable, Long-Life Construction: Built with rugged materials and a simple mechanical design, ensuring long-term performance even in high-vibration engine environments.
Simple Mounting and Installation: Can be installed on an engine firewall or mounting bracket with minimal setup time, reducing downtime and maintenance effort.

Applications

Diesel Generators: Provides automatic and safe shutdown during low oil pressure, high temperature, or system malfunction, protecting the generator from damage.
Marine Engines: Ideal for vessels that require dependable fuel rack shutdown capability during emergencies or harsh operating conditions.
Industrial Pumps and Compressors: Commonly used in engines powering pumps, hydraulic units, and compressors to ensure immediate shutdown when faults are detected.
Oil & Gas and Heavy Equipment: Suitable for rigs, drilling machinery, and mobile heavy equipment where rugged shutdown solutions are essential.
Automatic Safety Control Systems: Works seamlessly with monitoring instruments for remote or automated shutdown applications requiring mechanical actuation.
Mechanical Injection Engines: Perfect for engines without electronic fuel cut-off systems, offering a reliable mechanical method to stop fuel delivery.

Technical Specifications

Engineered for precision. Built for the harshest environments on Earth.

Category	Details
Operating Pull Force	10–30 lbf (44–133 N)
Voltage Options	12 VDC or 24 VDC models
Coil Resistance	32.2 Ω (12V), 129.8 Ω (24V)
Travel Distance	1.87 in (48 mm)
Cable Length Options	4 ft standard, optional 8 ft or 12 ft
Optional Chain	30-inch chain linkage
Shipping Weight	2.4 kg
Shipping Dimensions	235 × 210 × 133 mm

Technical FAQ

Common Questions Answered

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The RP75 Rack Puller provides a mechanical method to shut down a diesel engine by pulling the fuel rack or air intake shutoff lever when abnormal engine conditions are detected.

Yes. It works perfectly on both mechanical injection engines and engines lacking electronic shutdown solenoids, making it ideal for older diesel systems.

Yes. The RP75 uses a spring-powered mechanism, meaning shutdown still occurs even if electrical power is lost—providing true fail-safe operation.

The RP75 supports both cable and chain linkage. Cable options include 4 ft, 8 ft, and 12 ft, while the chain option is 30 inches long.

It can be mounted on a firewall or a dedicated bracket in generators, marine engines, pumps, compressors, drilling rigs, and heavy industrial equipment.