DoorKing 9240 Series Industrial Slide Gate Operators

Maximum-Security 3 HP Operator for Heavy-Duty Sliding Gates

The DoorKing 9240 Series is a U.S.-made, high-performance industrial slide gate operator engineered for maximum-security and restricted-access applications (UL 325 Classes III & IV). Designed for continuous-duty operation, it powers gates up to 8,000 lbs and 75 ft in length, making it ideal for high-security facilities, logistics centers, and correctional environments.

Equipped with a 3 HP continuous-duty motor and solid-state variable speed control, the 9240 provides smooth acceleration and deceleration from ½ to 2 ft/sec. Its #80 chain drive and 30:1 oil-bath gear reducer deliver high torque and quiet operation, while integrated anti-tailgating and partial-open functions ensure controlled and secure vehicle access.

Key Features

• Maximum Gate Capacity: 8,000 lbs and up to 75 ft in length
• Motor: 3 HP continuous-duty, high-efficiency design
• Drive System: Heavy-duty #80 roller chain with included hardware
• Speed Control: Adjustable variable speed, ½ to 2 ft/sec
• Gear Reduction: 30:1 oil-bath gear reducer for maximum durability
• Disc Brake System: Provides precise stopping and holding control
• Voltage Options: 208V, 230V, or 460V, 3-phase configurations
• Soft Start/Stop: Reduces mechanical wear and prolongs gate life
• Anti-Tailgating Feature: Prevents multiple vehicles from entering on a single open cycle
• Partial-Open Function: Adjustable for controlled limited gate movement
• Fail-Secure Operation: Locks out function during manual override
• Includes: Heavy-duty mounting pedestal and 20 ft of #80 chain
• Construction: G90 galvanized steel enclosure with stainless-steel access door

Technical Specifications

• Motor Power: 3 HP continuous-duty
• Voltage: 208V / 230V / 460V (Three-Phase)
• Speed Range: Adjustable 0.5 to 2 ft/sec
• Maximum Gate Weight: 8,000 lbs
• Maximum Gate Length: 75 ft
• Drive Mechanism: #80 chain drive with 30:1 oil-bath gear reducer
• Duty Cycle: Continuous industrial operation
• Operating Temperature: 10°F to 140°F (–12°C to 62°C)
• Environmental Rating: Weather-resistant; optional thermostatically controlled heater kit available
• Compliance: UL 325 and ETL listed (requires Type B1/B2 entrapment protection)
• Mounting: Pedestal-mounted design (included)
• Application Type: Industrial, government, and restricted-access sites

Available Models

• 9240-380 (208V 3-Phase)
• 9240-381 (230V 3-Phase)
• 9240-382 (460V 3-Phase)

Conclusion

The DoorKing 9240 Series delivers the strength, precision, and control demanded in high-security environments. With a powerful 3 HP motor, durable #80 chain drive, and advanced speed control, it ensures smooth, reliable performance under continuous use. Proudly made in the USA, the 9240 is the standard for industrial perimeter access where safety and durability are paramount.