LMS88 GIR38 Atlas Copco Pneumatic Impact Wrench

Atlas Copco LMS88 GIR38 Pneumatic Impact Wrench 1-1/2"

Product Introduction

The LMS88 GIR38 from Atlas Copco is a large-scale straight-type pneumatic impact wrench. This non shut-off tool handles the most demanding industrial applications. It delivers extraordinary power relative to its weight. The unique Grease Retaining System keeps the tool performing at its best for longer periods. Moreover, you barely feel any reaction force during operation despite the high torque output. This makes the LMS88 GIR38 perfect for mining, heavy equipment maintenance, and large-scale assembly.

Key Technical Specifications

This impact wrench drives bolts from 30 mm to 42 mm maximum. Maximum torque reaches an impressive 7370 ft-lb (approximately 10,000 Nm). The torque range is adjustable from 737 ft-lb to 4054 ft-lb. Impact rate is 540 blows per minute. Output size is 1-1/2" with a male square drive type. The tool length measures 381 mm. Center to side (CS Distance) is 63.5 mm.

For air requirements, consumption is 69.4 cfm at maximum load. Maximum working pressure is 100 psi. The air inlet thread is 1/2". Recommended hose size is 16 mm. The tool weighs 33 lb (approximately 15 kg). Package weight including accessories and protective case is 16.81 kg. Country of origin is Hungary (HU).

Design and Function Features

The LMS88 GIR38 uses a straight housing design with a rear exhaust. It has no automatic shut-off, giving you full manual control over fastening time. This design suits applications where operator feel and judgment are essential. The Grease Retaining System is a standout feature. It holds lubricant exactly where moving parts need it. Consequently, service intervals become longer and tool life increases significantly even under extreme loads.

Noise and Vibration Data

Sound pressure level is 100 dB(A) with a sound power level of 111 dB(A). Both measurements follow ISO15744 standard. Uncertainty is 3 dB(A). Vibration value is 4.8 m/s² according to ISO28927-2. Vibration uncertainty is 2 m/s². These figures are relatively low for a tool of this power class. However, operators must still wear appropriate hearing protection and take regular breaks to reduce vibration exposure.

Certifications and Compliance

The Atlas Copco LMS88 GIR38 meets EU Directive 2006/42/EC (Machinery Directive). It complies with EU Standard EN ISO 11148-6:2012 for hand-held non-electric power tools. For the UK market, it follows S.I. 2008/1597 regulations and the same EN ISO 11148-6:2012 standard. EAC certification is also confirmed, allowing sales in Eurasian Customs Union countries.

Installation and Operating Guidelines

Connect the LMS88 GIR38 to a clean, lubricated air supply regulated to 100 psi maximum. Use a 1/2" air hose with 16 mm inner diameter. Install a filter-regulator-lubricator (FRL) unit upstream with sufficient flow capacity (minimum 70 cfm). For best performance, use a dedicated air line lubricator set to 2-3 drops per minute. Insert a 1-1/2" square drive socket onto the male output. Apply the tool to the nut or bolt. Run the tool until the desired tightness is reached. Since this is a non shut-off wrench, remove the tool immediately after reaching torque to avoid over-tightening.

Safety and Handling Considerations

Due to its 33 lb weight and high torque, the LMS88 GIR38 requires two-handed operation. Use a tool balancer or support arm for overhead applications. Always wear safety glasses, hearing protection, steel-toe boots, and heavy-duty gloves. Keep a firm stance to resist the starting reaction torque. Never operate this tool without a properly secured socket and anvil.

Packaging List

• 1 x LMS88 GIR38 pneumatic impact wrench unit

• 1 x 1-1/2" male square drive (integral)

• 1 x Product information sheet

• No air fittings or lubricants included

Note: Certificates and warranty are not included in the package.

Shipping

We ship worldwide via FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

1. What size bolts can the LMS88 GIR38 handle?
The LMS88 GIR38 handles bolt sizes from 30 mm minimum up to 42 mm maximum. It is designed for heavy industrial fasteners such as those found on mining equipment, wind turbines, and large pumps.

2. Does this tool require a special air supply?
Yes, you need a compressed air system capable of delivering 69.4 cfm at 100 psi continuously. A standard 1/2" hose with 16 mm inner diameter is required. Use a filter-regulator-lubricator with adequate flow capacity.

3. Is the wrench suitable for automotive repair?
No, the LMS88 GIR38 is far too large for automotive work. It is intended for heavy industry, mining, rail, and large machinery assembly. For automotive use, consider smaller LMS models like the LMS08 or LMS22 series.

4. How does the Grease Retaining System benefit me?
The system keeps grease inside the impact mechanism longer. This reduces lubrication frequency and extends service intervals. In tough environments, this means less downtime for maintenance and a longer overall tool life.

5. Can I use this wrench for disassembly only?
Yes, the LMS88 GIR38 works exceptionally well for loosening large, rusted, or overtightened nuts. Its high impact torque breaks stuck fasteners free with very little reaction force transmitted to the operator.