Integrated Machine Safety Controls
Two-Hand Controls with Anti-Tie-Down Safety Relay
Redundant two-hand control system with anti-tie-down logic, ensuring safe machine cycles.
Dual-button safety control with anti-tie-down, ensuring both hands are present before machine actuation.
Two-hand controls with an anti–tie-down safety relay are operator-initiated safety devices designed to ensure that both hands are intentionally and simultaneously used to start a hazardous machine cycle. By requiring both actuating buttons to be pressed within a set time window—and held continuously—the system prevents operators from bypassing the controls, reaching into danger zones, or using improvised tools (“tie-downs”) to defeat the safety function. Integrated with a Category 3/PLd or Category 4/PLe safety relay, two-hand control systems monitor timing, redundancy, and contact integrity to guarantee proper operation. Commonly used on presses, cutters, shears, and high-force machinery, these systems help facilities comply with OSHA, ANSI B11, and ISO 13851 standards—delivering reliable, ergonomically safe machine-cycle initiation and reducing risk during hands-on operations.
User-Friendly Design
- Dual-palm station requires simultaneous operation of both buttons to start a machine cycle, protecting hands from pinch and point-of-operation hazards.
- Ergonomic button spacing prevents accidental activation and reduces operator fatigue during repetitive cycles.
- Large, high-visibility, industrial push buttons designed for gloved-hand use in harsh manufacturing environments.
- Built-in LED status indicators provide clear feedback for ready, fault, and active states.
Flexible Mounting Options
- Pedestal-mount, machine-mount, or workstation-mounted options for optimal operator reach and ergonomic posture.
- Compatible with t-slotted aluminum frames, steel guarding frames, operator stations, and adjustable-height stands.
- Optional armrests, wrist guards, and adjustable button spacing for custom ergonomic needs.
- Can be wired for single-operator or dual-operator configurations depending on process risk.
Seamless System Integration
- Anti-tie-down safety relay logic ensures both buttons are pressed within a defined time window, preventing defeat or single-hand activation.
- Meets or supports ISO 13851 (two-hand control), ISO 13849 (PLd/PLe), and ANSI/RIA machine-safety requirements.
- Relay provides redundant safety outputs, monitored reset, and fault detection for shorts, welded contacts, and button failure.
- Integrates with presses, forming machines, cutters, pneumatically actuated tooling, and high-force or high-speed hazardous cycles.
- Available in 24VDC safety relay packages compatible with light curtains, interlocks, E-stops, and full machine safety circuits.
Two-Hand Controls with Anti-Tie-Down Safety Relay
Redundant two-hand control system with anti-tie-down logic, ensuring safe machine cycles.
Dual-button safety control with anti-tie-down, ensuring both hands are present before machine actuation.
Two-hand controls with an anti–tie-down safety relay are operator-initiated safety devices designed to ensure that both hands are intentionally and simultaneously used to start a hazardous machine cycle. By requiring both actuating buttons to be pressed within a set time window—and held continuously—the system prevents operators from bypassing the controls, reaching into danger zones, or using improvised tools (“tie-downs”) to defeat the safety function. Integrated with a Category 3/PLd or Category 4/PLe safety relay, two-hand control systems monitor timing, redundancy, and contact integrity to guarantee proper operation. Commonly used on presses, cutters, shears, and high-force machinery, these systems help facilities comply with OSHA, ANSI B11, and ISO 13851 standards—delivering reliable, ergonomically safe machine-cycle initiation and reducing risk during hands-on operations.
User-Friendly Design
- Dual-palm station requires simultaneous operation of both buttons to start a machine cycle, protecting hands from pinch and point-of-operation hazards.
- Ergonomic button spacing prevents accidental activation and reduces operator fatigue during repetitive cycles.
- Large, high-visibility, industrial push buttons designed for gloved-hand use in harsh manufacturing environments.
- Built-in LED status indicators provide clear feedback for ready, fault, and active states.
Flexible Mounting Options
- Pedestal-mount, machine-mount, or workstation-mounted options for optimal operator reach and ergonomic posture.
- Compatible with t-slotted aluminum frames, steel guarding frames, operator stations, and adjustable-height stands.
- Optional armrests, wrist guards, and adjustable button spacing for custom ergonomic needs.
- Can be wired for single-operator or dual-operator configurations depending on process risk.
Seamless System Integration
- Anti-tie-down safety relay logic ensures both buttons are pressed within a defined time window, preventing defeat or single-hand activation.
- Meets or supports ISO 13851 (two-hand control), ISO 13849 (PLd/PLe), and ANSI/RIA machine-safety requirements.
- Relay provides redundant safety outputs, monitored reset, and fault detection for shorts, welded contacts, and button failure.
- Integrates with presses, forming machines, cutters, pneumatically actuated tooling, and high-force or high-speed hazardous cycles.
- Available in 24VDC safety relay packages compatible with light curtains, interlocks, E-stops, and full machine safety circuits.
- Assembly consists of:
- Two-hand palm button station (dual-pushbutton housing).
- Anti-tie-down safety relay with redundant force-guided contacts.
- Wiring diagram for 24VDC safety control integration.
- Optional pedestal stand and mounting hardware.
- Installation, reset, and safety-distance guidance documentation.
- Note: Press, actuator, valves, and downstream machine controls are not included.
- Common uses include:
- Stamping presses, punch presses, forming presses, and clamping operations.
- High-force pneumatic or hydraulic machines requiring operator presence verification.
- Equipment where presence-sensing devices (light curtains/radar) cannot be used due to tooling geometry.
- Retrofit safety upgrades on legacy machinery lacking compliant control systems.
- Situations requiring reduced risk of operator bypass, accidental actuation, or defeat of manual actuation controls.
