Powerful Air-Driven Bolting with Intelligent Monitoring

The Pneumatic Torque Wrench combines a precision Japanese air motor with a high-strength planetary gearbox for controlled tightening and loosening of industrial fasteners. Its compressed-air drive provides high torque output for heavy equipment assembly, maintenance, and demanding on-site bolting applications.

Precision Air Motor

• Japanese Air Motor: Precision-manufactured components support smooth operation and consistent power delivery.
• Durable Motor Vanes: Wear-resistant vanes support reliable performance during repeated operation.
• One-Piece Aluminum Housing: A high-strength cast aluminum housing provides structural rigidity and effective sealing.
• Precision Alloy Steel Rotor: Accurate rotor machining supports efficient operation and stable power transmission.
• Quality Pneumatic Components: Designed to support responsive operation and dependable air control.

High-Strength Planetary Gearbox

• Alloy Steel Gears: High-strength gears are designed to withstand demanding torque loads and repeated bolting cycles.
• Precision Gear Manufacturing: Advanced hobbing, shaping, and grinding processes achieve gear accuracy grades of 6–7.
• Optimized Gear Design: Developed with gear technology specialists to support smooth and stable operation.
• Fatigue-Tested Construction: Engineering calculations and extended fatigue testing support gearbox durability.
• Automatic Speed Adjustment: Adapts operating speed during the tightening cycle for efficient rundown and controlled final tightening.

Intelligent Control and Monitoring

• PASS/FAIL Indication: Provides clear feedback on whether the tightening result meets the configured acceptance criteria.
• Digital Pressure Display: Makes air pressure settings easy to read. Torque settings can be adjusted in 10 N·m increments using the calibrated pressure-to-torque relationship.
• Output-Side Torque Transducer: Measures working torque at the output end and displays torque readings in real time.
• Tightening Data Recording: Supports recording and transfer of tightening results for traceability and quality review.
• Low Air Pressure Alarm: Alerts the operator when supply pressure falls below the configured threshold, helping identify conditions that may affect torque output.

Typical Applications

Suitable for mining equipment, power generation, steel structures, heavy machinery, and industrial maintenance requiring high torque and controlled bolting.

Model	Min torque (N.m)	Max torque (N.m)	S	D	L	H	R1	R2	Weight	Max speed
				mm					（Kg）	rpm
PTW-05	100	500	3/4＂	60	170	210	56	99	4	50
PTW-10	150	1000	3/4＂	74	250	210	62	112	4.8	28
PTW-15	200	1500	1＂	76	260	210	70	130	5.2	21
PTW-20	300	2000	1＂	76	260	210	70	130	5.5	15
PTW-30	500	3000	1＂	93	340	210	80	150	7.5	10
PTW-40	700	4000	1-1/2＂	97	340	210	80	150	9.5	7
PTW-60	1000	6000	1-1/2＂	105	380	210	93	158	14	5
PTW-80	2000	8000	1-1/2＂	113	380	210	93	158	18	4
PTW-100	2000	10000	1-1/2＂	120	390	210	93	158	20	2.5
PTW-120	3500	12000	1-1/2＂	125	395	210	93	158	21	1.8