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RCH Hydraulic Rod Locks
Heavy-duty hydraulic rod lock delivering axial holding forces from 1,100 to 80,000 lbf. Spring-engaged, hydraulic-released design; fits NFPA cylinders.
Markets
Press & Stamping Safety
In press and stamping operations, you can never risk a dropped load or uncontrolled movement. When pressure fails or power is lost, Hennig's rod locks and press safety devices secure loads, hold positions and protect personnel.
Press safety engineered to hold when it matters most
Hennig designs and manufactures AMLOK rod locks in-house and is the exclusive U.S. provider of SITEMA safety devices. Whether you need a new press or retrofit, one team handles application review, product selection, and support after install.
The right solution, engineered by application experts
Not every press safety problem needs the same fix. AMLOK rod locks hold cylinder rod position when pressure is lost. SITEMA safety devices catch falling loads, and it’s TÜV-certified for OSHA compliance. Hennig engineers help you identify which solution fits your application before you commit to hardware.
The Challenge
What Keeps Press Operations on Edge
Without proper safety equipment, catastrophic failures can occur in press and stamping operations with heavy loads and pressurized conditions.
Falling Loads
Loss of hydraulic or pneumatic pressure can drop tooling or allow slides. Unsecured loads can lead to serious injury, damage, and costs.
Aging Safety Systems
Older presses often rely on outdated restraints or worn-down devices that were never designed for today’s loads or cycle demands. As systems wear, failure risks increase.
Safety Incidents & Regulatory Pressure
OSHA requires mechanical fall protection when hydraulic or pneumatic failure endangers personnel. Plants running without certified safety devices are at risk and out of compliance.
OUR SOLUTIONS
BUILT FOR PRESS SAFETY AND RELIABILITY
AMLOK rod locks and SITEMA safety devices cover both sides of press safety — mechanical position holding and certified fall arrest. See the products below to find the right solution for your application.
RCHX Hydraulic Rod Lock Exclusion Series
Rugged hydraulic rod lock for severe and submersible applications. Features enhanced sealing and corrosion-resistant construction for extreme conditions.
RLI Pneumatic Rod Lock (ISO 15552 Metric)
Compact pneumatic rod lock providing axial holding forces from 200 to 2,450 lbf. Spring-engaged, pneumatic-released design; fits ISO 15552 cylinders.
RLN Pneumatic Rod Lock (NFPA Inch)
Compact pneumatic rod lock providing axial holding forces from 200 to 2,450 lbf. Spring-engaged, pneumatic-released design; fits NFPA cylinders.
Safety Catchers
Spring-actuated rod locks that instantly catch and hold falling vertical loads—ideal for presses, lifts, and more.
Safety Brakes
Pneumatically or hydraulically released brakes that secure vertical or inclined loads; perfect for dynamic axes like Z-axes.
Safety Locks
High-capacity static clamps for holding suspended loads; ideal for slow or stationary applications like lifts and cranes.
Locking Units
Dual-direction clamps that secure rods in both directions, offering precision holding and safety in varied conditions.
PowerStroke
Combines clamping with a short-stroke actuator for high-force press operations; ideal for molding, clinching, and forming.
HOW WE WORK
FROM DESIGN-IN TO FACILITY RETROFIT
Our press safety projects follow a consultative process from design to retrofit. We match the right safety solution to the risks your operation faces.
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Application Review
We work directly with your team to evaluate your press, the loads involved and the failure scenarios you need to protect against.
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Design-in or Retrofit
Safety devices are engineered into new press designs or specified for retrofit on existing equipment — whichever fits your situation.
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Build & Ship
Safety devices are manufactured to exact specifications with ISO-certified processes, then shipped out soon after.
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Installation & Commissioning
We support the install, confirm proper engagement and make sure the system performs as specified before you're back in production.
EXPLORE MORE MARKETS
BUILT FOR YOUR INDUSTRY
Hennig press safety solutions are built for operations where a dropped load or uncontrolled movement isn't an option. If your facility runs presses, stamping equipment or hydraulic lifts, we build safety devices that fit your application.
Machining Automation
CNC shops keep pallets moving and machines cutting nights, weekends, and short-staffed shifts with Hennig’s WorkFlow automated pallet delivery system.
Aerospace & Defense
Market page coming soon!
Steel Mills & Metal Production
From the Resource Hub
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Visit Hennig + AME at WESTEC 2025
WESTEC 2025 is the West Coast’s leading manufacturing event, bringing together forward-thinking engineers, manufacturers, and solution providers to explore what’s next in precision production. Hennig and Advanced Machine & Engineering (AME) will once again be sharing a booth, offering a hands-on look into integrated solutions that improve uptime, accuracy, and throughput.
News
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Hennig ranked No. 61 among all U.S. manufacturing companies, placing it among the top-performing industrial suppliers in the nation. With estimated 2024 revenues between $100 million and $250 million, the company's trajectory underscores how U.S.-built systems power the next era of industry.
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