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Micro Air Grinder Onpin OP-190 - 3mm (1/8") Collet, 70,000 RPM, Aluminum Housing, 0.25kg
The Onpin OP-190 pneumatic micro grinder is a compact industrial tool operating under a standard compressed air pressure of 90 psi (6.2 bar / 6.3 kg/cm²). Delivering an ultra-high free speed of 70,000 rpm, it features a 3mm (1/8") collet size and a durable aluminum housing with a protective blue-black rubber hand grip for safe and easy handling. Measuring 130 mm (5.12 inches) in overall length, weighing only 0.25 kg (0.55 lb), with a 1/4 P.T air inlet, 1/4 inch (6.35 mm) hose size, and low air consumption of 85 l/min (3 cfm), this light and handy tool offers high accuracy for precision grinding and detail finishing.
- OP-190
- OP190
- OP 190
- OP-190 series
- OP-190 model
- micro air grinder 70000 rpm
- Onpin pneumatic pencil grinder 3mm
- high speed air micro grinder 1/8 collet
- light hand air die grinder aluminum housing
- industrial air pencil grinder for precision polishing
Design file download links:
Other fileDescription
Specification OP-190
The Onpin OP-190 micro pneumatic air grinder is a compact industrial pencil grinder operating on a standard compressed air supply of 90 psi (6.2 bar / 6.3 kg/cm²). It delivers an ultra-high free speed of up to 70,000 rpm and features an aluminum housing with a protective blue-black rubber hand grip. Engineered with a small volume, lightweight construction of only 0.25 kg (0.55 lb), and a 3 mm collet size (with 1/8" options), this tool provides an exceptional solution for high-precision detail grinding, deburring, and finishing.
Key Features of Onpin OP-190
- High Speed 70,000 rpm: Ensures rapid cutting performance, delivering ultra-smooth surface finishes for intricate work.
- Light and Handy Design: Ergonomically built for easy operation and maneuverability in tight spaces without operator fatigue.
- Aluminum Housing with Rubber Grip: Provides enhanced structural durability, secure non-slip handling, and thermal insulation.
- Flexible Collet Options: Accommodates both 3 mm and 1/8" shank burrs and accessories.
- Optimized Pneumatic Efficiency: Operates efficiently with low air consumption of 85 l/min (3 cfm) and standard 6.35 mm (1/4 inch) hose sizing.
Technical Specifications of Onpin OP-190
- Brand: Onpin
- Model: OP-190
- Operating Air Pressure: 90 psi (6.2 bar / 6.3 kg/cm²)
- Chuck/Collet Size: 3 mm (with 1/8" option)
- Free Speed: 70,000 rpm
- Air Consumption: 85 l/min (3 cfm)
- Overall Length: 130 mm (5.12 inch)
- Air Inlet: 1/4 P.T
- Net Weight: 0.25 kg (0.55 lb)
- Hose Size: 6.35 mm (1/4 inch)
Industrial Applications of Onpin OP-190
- Mould Making: Precision grinding and mirror polishing of plastic injection moulds and stamping dies.
- Precision Component Manufacturing: Deburring, engraving, and fine surface finishing on small metal parts and electronics enclosures.
- Mechanical Maintenance: Cleaning, smoothing, and detailing intricate machinery components during servicing.
