As an authorised industrial equipment distributor, Collins Tools & Welding Supplies provides direct commercial supply channels to the entire catalog of Shinano™ premium Japanese pneumatic air tools, heavy-duty impact wrenches, industrial die grinders, and high-capacity workshop air compressors.
If your engineering facility requires a larger 3-inch straight configuration (SI-SG3-3L), specialized extended-shaft collet grinders, or heavy-duty high-flow air fittings, get in touch with our Brisbane trade support specialists here and we will organise your specific tool layout instantly.
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Description
The Shinano™ 2.5″ Industrial Air Straight Disc Grinder (Part Number: SI-SG3-2L) represents the pinnacle of commercial-grade pneumatic tool performance, engineered specifically to handle punishing metal removal and heavy surface preparation work. Manufactured strictly in Japan, this industrial-duty straight grinder features a high-output 520-Watt air motor that maintains consistent high-torque delivery under heavy loads, driving a free speed configuration up to a staggering 14,600 RPM.
The standout feature for commercial workshops is its mining-grade durability and ergonomic safety framework. Built with a heavy-duty housing assembly, precision stainless steel ball bearings, and hardened steel gears, the SI-SG3-2L is designed to withstand the daily impact of structural steel fabrication shops, casting bays, and remote maintenance yards. The specialized inline housing profile allows operators to effortlessly access tight internal radii, recessed pipe angles, and blind weld profiles that normal angle grinders cannot physically reach.
To fit local workshop floors and mechanical fleet teams seamlessly, this premium air tool accepts standard 65mm x 13mm (2.5″) grinding wheels and discs, and it comes complete with an integrated safety lever throttle mechanism to completely prevent accidental spin-ups on the job floor.
Operator Comfort Advantage: Equipped with an advanced internal governor system and rear exhaust pathway, the SI-SG3-2L drastically reduces hand-arm vibration strain (3.67 m/s²) and quietens industrial pneumatic noise. This protects operators during continuous, long-duration grinding shifts while simultaneously diverting cold compressed air cleanly away from the work surface.
Key Features & Performance Benefits
🔹 Heavy-Duty Mechanical Performance
- Made in Japan Quality: Designed and manufactured to demanding Japanese industrial tool standards, ensuring peerless operational reliability.
- High-Torque 520W Air Motor: Delivers continuous pneumatic power to effortlessly slice through slag, smooth out casting irregularities, and blend structural welds.
- Rapid 14,600 RPM Free Speed: Provides optimal surface speed parameters for standard 2.5-inch abrasive wheels to ensure maximum material removal rates.
🔹 Advanced Safety & Ergonomic Controls
- Inline Straight Configuration: Slimline 316mm long-reach body is purpose-built to fit cleanly into cramped channels, internal vessel walls, and awkward pipe fabrications.
- Lever Throttle Safety Interlock: Spring-loaded safety lever cuts airflow completely the moment the operator releases their grip, preventing workshop drop hazards.
- Integrated Disc Protection Guard: Heavy-gauge steel wheel guard deflects hot flying sparks, grinding dust, and fractured abrasive fragments safely away from the operator.
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- Accepts 65x13mm grinding wheels
Specifications
| Length |
316 mm |
| Height |
95 mm |
| Spindle Size |
9.35 mm |
| Free Speed |
14,600 RPM |
| Weight |
1,660 g |
| Noise Level |
0.88 dB |
| Vibration |
3.67 a/K |
| Air Consumption |
14.4 CFM |
| Motor Watt |
520 Watts |
