Description
Finishing complex aerospace turbine impellers, medical casting cavities, and precision mold cavities requires extreme reach without spindle deflection. The Cleco Dotco Inline Extended die grinder accesses deep internal bores with 28000 RPM of glass-smooth rotary speed. Tool and die makers achieve microscopic surface finishes, yet fine line grit will scuff precision rotor vanes if shop filtration fails.
An extended alloy steel drive spindle rides inside matched duplex precision ball bearings, virtually eliminating collet runout. The internal motor wet-end features a precision-honed ductile iron cylinder paired with four phenolic composite rotor vanes. A case-hardened rotor shaft delivers rotational energy straight to the precision Erickson collet system. An aircraft-grade aluminum extension housing keeps overall tool weight balanced, while an integrated rear exhaust muffler directs cold air discharge away from sensitive casting surfaces.
Field Hardware Performance Matrix
Aerospace finishing rooms and high-precision tool shops require extended inline die grinders that hold zero runout tolerances under load. The engineering parameters below highlight the high-precision hardware built into this industrial extended rotary tool.
- 0.3 horsepower pneumatic motor delivers constant rotational speed across fine deburring passes
- 28000 RPM free speed smooths investment castings and complex mold contours fast
- Extended spindle housing provides reach into deep cylinder bores unreachable by standard grinders
- Erickson 200 series 1/4-inch collet guarantees ultra-low runout to stop carbide burr chatter
- Matched duplex precision ball bearings resist spindle deflection under sustained lateral loads
- Ductile iron motor cylinder provides long service life under non-stop production cycles
- Rear exhaust deflector vents expanded air and oil mist through an acoustic silencing muffler
Dyno Bench Load Telemetry
Dyno testing logs 28000 RPM free speed that bogs to 21500 RPM under continuous carbide burr profiling. The air wet-end draws 16 CFM at 90 PSI dynamic under full load. Supplying air across fifty feet of 3/8-inch hose results in a 10 PSI dynamic line pressure drop. Adiabatic expansion cools the rear exhaust sleeve to 24°F during prolonged mold cavity runs. Acoustic sound pressure measures an ultra-quiet 77 dBA.
Field Service Operational Directives
Running unrated, bent, or off-center carbide burrs at 28000 RPM will shatter the cutting head and destroy the precision duplex bearings. Do not operate this high-precision aerospace tool on unfiltered shop air networks lacking moisture separators. Dirt particles cause instant motor cylinder scoring. Precision toolrooms must enforce these strict maintenance directives.
- Inject three drops of ISO VG 32 pneumatic lubricant into the inlet before every four-hour shift
- Wipe the collet taper and collet nut clean with solvent before mounting new carbide burrs
- Verify shop air line filtration maintains clean, dry air at 90 PSI dynamic at all times
Commercial Warranty Package Inventory
Cleco supports this Dotco extended die grinder with a 1-Year limited warranty covering defective parts and manufacturing errors. The unboxing package contains the extended inline die grinder, an Erickson 1/4-inch precision collet, dual collet adjustment wrenches, and an illustrated technical parts breakdown.