Max Air Pneumatic Actuator

Max Air Pneumatic Actuator

Max Air Pneumatic Actuator

Category: Actuators

Description

MT Series rack & pinion pneumatic actuators are air-powered 90° rotary actuators designed for precise action and reliable long-life operation.

They offer easy integration, flexible customization, and reliable performance, with ISO mounting patterns, NAMUR accessory mounting, and patented ±10° travel adjustment for open/closed positions.

Standard Features

Compact rack and pinion design
Direct ISO 5211 valve mounting
NAMUR accessory mounting (VDI/VDE 3845)
Anti-blowout bi-directional pinion retention
High visibility open/closed indicator
Pre-loaded spring cartridges
Double-acting (air-to-air) operation
Spring-return (air-to-spring), fail-open or fail-close
Standard or reverse rotation options
Patented ±10° travel stop adjustment
Designed for high cycle life (1,000,000+ cycles)
Unlimited cycle life warranty

Specifications

Operation

Rotation: 90° (±10° adjustment)
Operation type:
- Double Acting (DA)
- Spring Return (SR)

Torque

Up to 47,250 in-lbs (Double Acting)
Up to 22,746 in-lbs (Spring Return)

Pressure

Operating pressure: 40 – 120 PSI
Max pressure rating: 150 PSI

Temperature

Standard: -4°F to 176°F (-20°C to 80°C)
Options:
- Low temp: down to -67°F (-55°C)
- High temp: up to 300°F (cyclic)

Materials

Housing: Anodized Aluminium
Pinion: Nickel plated carbon steel
End caps & pistons: Epoxy coated die cast aluminium
Fasteners: AISI 304 Stainless Steel
Seals: BUNA-N (standard)
Bearings: Technopolymer
Spring cartridges: Epoxy coated steel with technopolymer cartridge

Mounting

ISO 5211
NAMUR VDI/VDE 3845

Performance & Design

High cycle wear bearings (low friction, no metal-to-metal contact)
Precision honed bore for long seal life
Rugged rack & pinion tooth design for high strength
Tested for 1,000,000+ cycles
Dual travel stop design for precision adjustment
Linear piston stops for improved repeatability

Seal Options & Temperature Ranges

Seal Type	Code	Temperature Range
Super Low Temp (FVMQ)	SLT	-67°F (-55°C) to 250°F (300°F cyclic)
Low Temp (Silicone)	LT	-49°F (-45°C) to 250°F
Standard (BUNA-N)	STD	-4°F (-20°C) to 176°F (80°C)
High Temp (VITON)	HT	-10°F (-23°C) to 250°F
Low Temp BUNA	LTB	-40°F (-40°C) to 212°F (100°C)

Sizes Available

17 sizes available: MT04 to MT76

Media

Gas or low-pressure hydraulic fluid

Additional Notes

Torque increases with supply pressure and actuator size
Spring return torque decreases during opening and increases during closing
Proper sizing requires:
- Valve torque
- Air supply pressure
Recommended safety factor: +5% to 50% torque margin

Warranty

Standard warranty:
- 12 months from installation OR
- 18 months from shipment
Unlimited Cycle Life Warranty on seal performance (conditions apply)

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