OSHA 1910.218: Forging Machines

OSHA 29 CFR 1910.218 sets machine-specific requirements for forging machinery used in U.S. general industry workplaces. Forging operations can expose employees to severe crushing, impact, heat, ejection and die hazards from hammers, presses, upsetters, forging rolls and associated material-handling equipment.

The main safeguarding objective is to prevent employees from being exposed to hazardous machine movement, die areas, moving stock and ejected material during production, setup, die changes, maintenance and fault recovery.

Forging machine safety is not achieved by installing a perimeter fence alone. The safeguarding arrangement must address the point of operation, die movement, foot or hand controls, access to the machine, hot material, scale, ejection risk, power transmission and hazardous-energy control.

This article provides a general overview of U.S. OSHA requirements. The applicable provisions depend on the machine type, process, die arrangement, operating method and workplace conditions. Employers should review the current regulation, manufacturer instructions and any applicable OSHA-approved state-plan requirements.

What OSHA 1910.218 Covers

OSHA 1910.218 contains machine-specific requirements for forging equipment, including provisions relevant to hammers, presses, upsetters and forging rolls. The applicable subsection depends on the machine type and forging operation. Associated dies, drives, controls and material-handling equipment may also require safeguarding under OSHA 1910.218 and other applicable OSHA provisions.

• mechanical power hammers
• forging presses
• upsetters
• forging rolls
• hydraulic presses used for forging
• associated dies, controls and material-handling equipment

The standard should be considered alongside other applicable OSHA requirements, including:

• 29 CFR 1910.212 for general machine guarding
• 29 CFR 1910.147 for hazardous-energy control during servicing and maintenance
• 29 CFR 1910.219 for mechanical power-transmission apparatus
• 29 CFR 1910.132 for personal protective equipment
• applicable electrical, ventilation, heat-stress, fire-prevention and housekeeping requirements

A forging machine may have point-of-operation protection but still expose personnel to unguarded drives, moving stock, hot workpieces, scale, die-setting hazards or unsafe maintenance activity.

Main Forging Machine Hazards

Forging machinery can generate substantial force, heat and moving material. Hazards may arise from the machine itself, the workpiece, the tooling and connected handling systems.

Common hazards include:

• crushing or shearing at the die area
• impact from ram, hammer or press movement
• ejection of hot workpieces, scale, broken dies or tooling
• trapping between moving stock and fixed structures
• entanglement with rotating rolls, drives, shafts or couplings
• burns from heated workpieces, dies or process surfaces
• in-running nip points at forging rolls or feed equipment
• unexpected movement during setup, adjustment or maintenance
• exposure to noise, fumes, dust or hot scale
• vehicle and material-handling hazards around stock, billets and finished parts

The die area is often the highest-risk location, but the risk assessment should also include feed systems, transfer devices, manipulators, conveyors, tooling storage, die-change arrangements and surrounding traffic.

Point-of-Operation Safeguarding

The point of operation is the area where the forging die, hammer, ram, press or roll performs work on the material.

Depending on the forging machine, operation and applicable OSHA provisions, safeguarding may involve a combination of:

• fixed or adjustable guards
• die enclosures, barriers or screens
• engineered feeding, work-holding or remote-handling methods
• machine-specific trip controls or operating controls
• restricted access and suitable operator positioning
• interlocked access guards or perimeter safeguards for associated automated equipment
• engineered tooling, fixtures and die-setting methods

The safeguarding method should be selected for the specific machine and operation. A control suitable for one forging process may not be suitable for another

The appropriate measure depends on the machine and process. Open-die forging, closed-die forging, automated hot forging and hand-fed operations can have very different access and safeguarding requirements.

A barrier that protects one side of the die area may still leave access from the rear, side, top or material-feed direction. The complete access path must be considered.

Controls, Foot Pedals and Operating Methods

Forging machines may use hand controls, foot pedals, treadles or other operating controls. These controls must be selected and arranged so they do not create unintended machine operation or expose people to the point of operation.

The safeguarding review should consider:

• the operating mode and cycle type
• location and protection of hand or foot controls
• prevention of unintended operation
• whether more than one person works near the machine
• control access during die setting or adjustment
• restart behavior after a stop
• control reliability and maintenance
• access to emergency stopping arrangements
• the relationship between the control method and operator position

Foot-operated controls should also be protected against unintended operation where required by the machine design and applicable OSHA provisions. If the operation requires an employee to hold or position material near hazardous dies, the feeding method, tooling, safeguarding and operating procedure need careful review.

Protect Against Ejection, Scale and Hot Material

Forging operations can eject hot scale, workpieces, broken tooling or die fragments. These hazards can extend beyond the immediate point of operation.

Consider:

• barriers or screens where ejection is foreseeable
• protection of nearby personnel and walkways
• workpiece containment and handling methods
• die condition and inspection
• guards around rotating or moving process equipment
• safe positions for operators and assistants
• clear separation between the machine and surrounding traffic
• personal protective equipment appropriate to the process

Physical guards, screens or enclosures may need to provide more than access control. Where ejection, hot scale or broken tooling is foreseeable, they may also need suitable containment and resistance to expected impact and thermal exposure.

A mesh perimeter fence may be suitable for whole-body access control, but it may not be suitable as the only protection where hot scale, fragments or ejected material can pass through the openings.

Die Setting, Adjustment and Maintenance

Die changes, setup and maintenance are high-risk activities because personnel may need to work close to the ram, hammer, press or die area.

Before these tasks begin, review:

• shutdown and isolation procedures
• control of electrical, pneumatic, hydraulic, mechanical and gravity-related energy
• stored energy in flywheels, accumulators, springs or elevated components
• die blocking, ram support or other required measures where employees could be exposed to gravity or mechanical movement during die setting, adjustment or maintenance
• safe handling of dies and tooling
• use of lifting equipment and rigging
• access to the die area
• inspection and refitting of guards before restart
• functional testing of controls and safety devices after repair

An emergency stop is not a substitute for lockout/tagout or other energy-isolation procedures. Where workers are exposed to unexpected startup, gravity movement or stored energy during servicing, applicable hazardous-energy-control requirements must be followed.

Forging Rolls and Auxiliary Equipment

Forging rolls, feed equipment and transfer systems can create additional nip, drawing-in and crushing hazards.

The safeguarding review should include:

• in-running nip points between rolls
• rotating shafts, couplings, gears and drives
• automated billet or stock feeders
• transfer arms, manipulators and conveyors
• heating equipment and furnace interfaces
• downstream trimming, cooling or handling systems
• access during jams, stock misalignment and maintenance

A forging machine should be assessed as part of the wider production system. A guarded hammer or press may still be connected to conveyors, robots, manipulators and transfer equipment that introduce separate hazards.

Modular Guarding for Automated Forging Cells

Standalone forging equipment usually requires machine-specific safeguards at the die area, rolls and local mechanical hazards. Modular machine guarding does not replace those controls.

However, modular perimeter guarding may be appropriate around larger automated forging systems, including:

• robotic loading and unloading cells
• automated billet handling
• conveyor-fed forging lines
• transfer systems and manipulators
• automated trimming or finishing cells
• palletizing and material-handling areas

In these applications, modular panels, posts and interlocked access gates can help control whole-body access to the wider automated area. The layout should still account for hot material, ejection risk, machine stopping performance, vehicle traffic and safe maintenance access.

Common Forging Safeguarding Mistakes

Common problems include:

• relying on operator experience instead of safeguarding the die area
• using foot controls while hands remain exposed near hazardous dies
• leaving side or rear access to the point of operation
• failing to control hot-scale or ejection hazards
• leaving drives, shafts, couplings or rolls exposed
• bypassing guards or controls during setup
• failing to isolate the machine before die changes
• failing to use required die-support, blocking or ram-support measures during die setting or maintenance
• placing perimeter guarding too close to hot material or moving equipment
• treating modular fencing as a replacement for local die-area protection

A safeguarding arrangement that works during normal forging but does not control setup, maintenance, die changes and material-handling tasks is incomplete.

Relevant Standards and Technical Considerations

OSHA 29 CFR 1910.218 is the key U.S. regulation for forging machines. Other OSHA provisions and technical standards may also be relevant, depending on the machine, safeguarding method and workplace conditions.

Common references may include:

• 29 CFR 1910.212 for general machine guarding
• 29 CFR 1910.147 for hazardous-energy control during servicing and maintenance
• 29 CFR 1910.219 for mechanical power-transmission apparatus
• ISO 12100 for machinery risk assessment and risk reduction
• ISO 13849-1 for safety-related parts of control systems
• ISO 13855 for positioning protective devices where approach speed and stopping time are relevant
• ISO 14120 for the design and construction of guards
• ISO 14119 for interlocking devices associated with guards

These standards may provide technical guidance but do not replace applicable OSHA requirements in U.S. workplaces. Workplaces outside the United States should review local machinery-safety laws, regulations and standards.

Conclusion

OSHA 1910.218 addresses serious hazards associated with forging machinery, including crushing, impact, ejection, heat and hazardous movement at dies, hammers, presses and forging rolls.

Effective forging-machine safeguarding requires more than a physical barrier. The complete system must address the point of operation, hot workpieces, ejected material, controls, feed systems, drives, die changes and energy isolation.

For larger automated forging lines, modular perimeter guarding can help manage access around robots, conveyors, transfer systems and material handling. It does not replace the machine-specific safeguarding required at accessible dies, rolls and local hazard points.

If you are reviewing forging equipment, start with the machine type, die area, material flow, controls, ejection risks and maintenance tasks. A competent machinery safety professional can help identify suitable local guards, access controls and safeguarding measures for the application.

Frequently Asked Questions

What does OSHA 1910.218 cover?

OSHA 29 CFR 1910.218 covers forging machines used in U.S. general industry workplaces. It includes requirements relevant to forging machinery hazards, controls, safeguarding, operation and maintenance.

What is the main hazard on a forging machine?

The main hazard is often crushing, impact or shearing at the die area. Other major hazards include ejected material, hot scale, moving stock, rolls, drives and unexpected movement during setup or maintenance.

Are foot pedals safe for forging machines?

A foot pedal may be part of the machine control system, but it does not by itself protect hands or other body parts near the die area. The full safeguarding arrangement, material-handling method and operating task must be assessed.

Does a perimeter fence protect the forging die area?

Not by itself. Perimeter guarding can control whole-body access to an automated cell, but machine-specific protection is still needed at accessible die areas, forging rolls, drives and other local hazards.

Why are die changes high risk?

Die changes can expose workers to gravity, stored energy, moving rams, heavy tooling and hazards inside the point-of-operation area. The task may require shutdown, isolation, die blocking and controlled lifting procedures.

Can modular guarding be used around automated forging lines?

Yes. Modular guarding can be used around robots, conveyors, transfer systems and automated material handling. It should be combined with suitable local safeguards for dies, rolls, hot material and ejection hazards.