Low Speed Tyre Grinding Machine
An automotive tyre grinder (often referred to as a tyre buffer or air die grinder) is a specialized garage tool designed to rough up, smooth, or clean rubber surfaces before applying patches or vulcanizing plugs. It is essential for ensuring that tire repairs stick permanently. [1] (https://macire.co.ke/product/sunshine-tyre-grinder-kit-professional-repair
Description
Low Speed Tyre Grinding Machine
Standard Accessories Included
- Controlled Rubber Texture (No Burning): The interplay of 3,000 max RPM combined with 0.5 HP ensures that even under heavy downforce, the tool stays strong without dropping speed completely or spiking friction temperatures.
- Worker Safety and Visibility: The Rear Piped-Away Exhaust acts as an air duct away from the tire interior, ensuring rubber shavings do not blow back into the technician's eyes or disturb the clean tire inner liner.
- Industrial Utility: The standardized 1/4" NPT inlet and low tool weight ensure it can hook straight into typical passenger/commercial shop drop-lines without fatiguing workers during multi-tire shifts
- High-Torque, Low-RPM Motor: Typically operating at a fixed or maximum free speed of 2,200 to 2,500 RPM. Unlike high-speed grinders, the low speed delivers high mechanical torque. This is necessary to deeply texture rubber while preventing friction-induced heat that causes scorching, melting, or thermal degradation of the tire casing.
- Quick-Change Hex Chuck: Equipped with a standard 11 mm (7/16-inch) quick-connect hex chuck. This allows technicians to seamlessly snap-lock tungsten steel buffing wheels, reaming drill bits, or wire contour brushes into place without needing specialized wrenches.
- Piped-Away Rear Exhaust & Whip Hose: Features a secure rear-facing directional exhaust path. It often routes compressed air back through an integrated rubber whip hose. This layout keeps exhaust air completely away from the operator's face and prevents loose rubber dust from blowing out of the inner liner during cleaning.
- Tease Trigger with Safety Lock-Off: Features a standard paddle-style or lever-style "tease trigger" for progressive throttling control. An integrated mechanical safety lock-off mechanism drops down to prevent accidental tool activation when dropped or set on a busy workbench.
- Built-In Air Regulator / Speed Dial: Includes an adjustable rear regulator valve (often dialed via a slotted screwdriver or thumbwheel). This allows the user to choke down or maximize incoming pneumatic pressure to adapt to soft inner butyl liners versus heavy commercial tire treads
- 1 × Main Electric Switch / Control Box
- 2 × Slide Units with Fine Micrometer Adjustment
- 1 × High-Efficiency Heavy Duty Dust Hood / Extraction Cover
- 1 × Set of Secure Mounting Clamps / Rigging Brackets
Specification
| Parameter | Specification Details |
|---|---|
| 6.2 – 6.3 Bar | 90 PSI |
| 0.51 – 1.06 Kg | 1.13 – 2.33 lbs |
| Safety Mechanism | Throttle Lock-out Lever Drop-prevention Safety Lock |
| Speed & Power | Free Operating Speed |
| Motor Power Rating | 0.35 – 0.37 kW 0.40 – 0.50 HP |
| 2,200 – 3,000 RPM | 2,200 – 3,000 RPM |
| Overall Tool Length | 210 – 220 mm 8.27 – 8.66 inches |
| Minimum Hose Diameter | 10 mm 3/8 inch |
| Standard Metric Value | Standard Imperial Value |
| Housing Shell Material | Composite over-sleeve / Aluminum Composite / Polished Aluminum |
| 11 mm Hex Quick-Connect | 7/16-inch Hex Slip Chuck |
| Average Air Consumption | 113 – 174 L/min 4.0 – 6.2 CFM |
| Speed Control Mechanism | Variable Throttle / Tease Trigger Progressive Lever Style |
| Safety & Environment | Exhaust Configuration |
| Vibration Emission Level | 1.1 – 2.5 m/s² 1.1 – 2.5 m/s² |
| Air Inlet Connection Size | 1/4" NPT Thread 1/4" NPT / NPTF |
| Air Consumption under Load | 396 – 765 L/min 14.0 – 27.0 CFM |
| Ergonomics & Physicals | Total Tool Weight |
| Feature Parameter Category | Technical Attribute / Specification |
| Tool Interface & Chuck | Chuck Size / Type |
| Air Consumption & Supply | Recommended Operating Pressure |
| Compatible Buffing Head Size | Ø 35 mm – 50 mm max Ø 1-3/8" – 2" max |
| Sound Pressure / Power Level | 85 – 95 dBA / 96 – 108 dBA 85 – 95 dBA / 96 – 108 dBA |
| Rear Piped-Away Silencer Hose | Rear Exhaust Whip Hose |
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