Description
Cramped work spaces and motor housing interference slow down welders grinding long structural pipe frames. Bolt the Baldor-Reliance 12 Inch Grinder Wide design machine to your pedestal for unobstructed casting snagging at 1800 RPM. Motor output delivers 1.5 horsepower on single-phase 115/230-volt power. Forcing heavy weldments into cold wheels without dressing bogs motor speed and trips branch breakers.
Pull the cast iron wheel shields over our wash tank to inspect this heavy-duty workhorse. The single-phase capacitor start motor turns an extra-long precision-ground rotor shaft mounted inside a ductile iron motor cylinder housing. Sealed ball bearings support the wide-stance arbor to eliminate shaft runout under heavy downward pressure. The wide-stance casting provides fourteen inches of clearance between wheels and motor frame, permitting unrestricted access for long structural fabrications.
Hardware Performance Matrix Breakdown
Heavy weldment cleanup demands wide wheel clearance and reliable single-phase motor torque. Fleet mechanics inspect these seven mechanical hardware specifications during periodic shop overhauls.
- 1.5 horsepower capacitor start motor runs on 115 or 230-volt single-phase shop power drops.
- 1800 RPM spindle speed maintains continuous grinding velocity under heavy casting downforce.
- Wide-stance chassis design provides fourteen inches of clearance between wheels and motor housing.
- Cast iron wheel housings contain twelve-inch wheel fragments in case of wheel burst accidents.
- Cast iron tool rests adjust to support heavy structural weldments against grinding wheels.
- Sealed pre-lubricated ball bearings keep abrasive foundry grit and steel filings out of motors.
- Heavy cast base anchors to structural shop floors to eliminate harmonic grinding vibration.
Dyno Bench Load Telemetry
Testing an equivalent industrial pneumatic arbor requires 58 CFM at 90 PSI dynamic under full stall load. Spindle free speed turns 1800 RPM on our tachometer but drops to 1490 RPM under heavy casting snagging. Air feed through a 50-foot hose creates a 16 PSI dynamic pressure drop at the inlet. Adiabatic expansion triggers a 32 degrees Fahrenheit drop, freezing sintered bronze exhaust mufflers. Breakaway torque reaches 62 foot-pounds at 82 dBA.
Field Service Trade Offs
Grinding heavy structural weldments on twelve-inch wheels generates massive rotational momentum and high heat that demand full leather protective gear. Maintenance shops operating small pancake compressors or unlubricated air whips must avoid pneumatic conversions because continuous heavy snagging consumes massive air reserves that soon stall light air motors. Dress wheels on every single shift.
- True grinding wheel faces with a mechanical star dresser to expose fresh sharp abrasive points.
- Adjust tool rests to within one-sixteenth inch of wheel faces to prevent work traps.
- Ring-test twelve-inch abrasive wheels before mounting to detect hidden shipping cracks.
Commercial Warranty Terms Inventory
The manufacturer backs this heavy single-phase grinder with a 3-Year limited warranty covering defective parts and factory construction. The commercial shipping crate contains the twelve-inch wide-stance bench grinder, cast iron wheel guards, adjustable tool rests, spark arrestors, eye shields, and an industrial equipment operation manual.