Le Lematec LE-R2550B 1/2" Air Ratchet | 75 ft-lb, Safety Throttle Lock, 450 RPM
- Regular price
- $160.99
- Sale price
- $160.99
- Regular price
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- Unit price
- / per
LE-R2550B 1/2" Air Ratchet — 75 ft-lb, Safety Throttle Lock, 450 RPM
The Le Lematec LE-R2550B is the industrial-grade step-up in the 1/2" air ratchet lineup. At 75 ft-lb and 450 RPM, it tackles the fasteners that lighter ratchets stall on — and the thumb-operated safety throttle lock makes it the go-to choice for production assembly lines and manufacturing facilities where accidental activation is a real hazard.
Key Features
- 75 ft-lb Max Torque (102 N-m): Highest-torque air ratchet in the Le Lematec lineup — handles stubborn, corroded, and high-torque fasteners that lighter ratchets can't break free
- Safety Throttle Lock: Thumb-operated lock prevents accidental activation when bumped or dropped — required in many production and industrial facilities
- 450 RPM Free Speed: Fastest in the Le Lematec ratchet lineup — maximizes throughput on production assembly and fleet service work
- 6-Blade Rotor Design: Delivers more power and efficiency vs. standard 4-blade rotors at the same air consumption
- Sealed Head Design: Prevents accidental head opening during operation — critical for production environments
- Heat-Treated Alloy Steel Bushing: Increases wear resistance for daily industrial use
- Rear Exhaust: Directs air away from the work surface and operator
- Slim Head Profile: Accesses fasteners in recessed areas and behind obstructions
Specifications
- Drive Size: 1/2"
- Max Torque: 75 ft-lb / 102 N-m
- Free Speed: 450 RPM
- Air Consumption: 4.5 SCFM
- Air Pressure: 90 PSI (6.3 kg/cm²)
- Air Inlet: 1/4" NPT
- Exhaust: Rear
- Ratchet Pawl: Single
- Rotor Blades: 6
- Length: 11.2 in (285 mm)
- Weight: 3.1 lbs (1.4 kg)
- Vibration: 8.35 m/s²
Perfect For
Production assembly lines, manufacturing plants, fleet service, and heavy automotive shops where controlled high-torque fastening, industrial safety compliance, and all-day durability are non-negotiable.
What's in the Box
- LE-R2550B 1/2" air ratchet wrench
- Air inlet fitting (1/4" NPT)
- User manual with safety instructions
Compatible With
| Sockets | All standard 1/2" drive sockets, impact sockets, and extensions |
| Air Compressors | 6+ CFM at 90 PSI (30+ gallon tank recommended for continuous use) |
| Accessories | 1/2" drive extensions, universal joints, socket adapters, torque sticks |
Frequently Asked Questions
What air compressor do I need for the LE-R2550B?
This tool requires approximately 4-6 CFM at 90 PSI. A 30+ gallon tank is recommended for continuous production use. A 20-gallon tank handles intermittent automotive work.
Is the LE-R2550B compatible with my existing air setup?
Yes. It uses a standard 1/4" NPT air inlet fitting compatible with most compressors, hoses, and quick-connect couplers from any manufacturer.
Why does this ratchet have a safety throttle lock?
The thumb-operated throttle lock prevents the tool from activating when accidentally bumped or dropped — a critical safety feature in crowded shop environments and required by many industrial and manufacturing facilities. It also prevents unintended fastener loosening during transport or storage.
Is 75 ft-lb enough to replace an impact wrench?
No — air ratchets and impact wrenches serve different purposes. The LE-R2550B is designed for controlled fastener tightening and removal. Impact wrenches (like the Le Lematec 1,000 ft-lb model) use concussive blows for frozen, rusted, or very high-torque fasteners. Use the ratchet for speed and access; use the impact wrench for raw power.

