Maxi Torque-Rite - Power Drawbar Head - TR-279
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The Maxi Torque-Rite TR-279 is the power head; the air gun assembly that does the actual work of clamping and releasing the tool. It's the single head Maxi Torque-Rite builds for their entire pneumatic power drawbar platform, used across every TR-100 system configuration and OEM cross-referenced to Southwestern Industries part 22581-1 on Trak DPM / ProtoTRAK machines. Change a tool in seconds, not minutes: increase productivity on your manual milling machine, decrease cycle time on your CNC milling machine. Delivers 40-50 ft-lb of torque to the tool holder, not the 15-25 ft-lb you get from competing drawbars.
Specifications ▼
Torque Output
40-50 ft-lb — nearly double the 15-25 ft-lb of competing power drawbars
Collet Protection
Virtually eliminates tool slipping in the R-8 collet on heavy cuts
Design
Slim-line air gun assembly, low part count — fewer O-rings and moving parts than competing drawbars for longer, trouble-free service life
Installation
Installs in minutes on most milling machines — R-8, NT30, and NT40 taper spindles
Material & Heat Treatment
4140 pre-hard steel (28-32 RC), rolled-formed threads for long bar life, heat-treated splines and spacers
OEM Cross-Reference
Southwestern Industries / Trak Machine Tools part 22581-1
Warranty
One year limited
Machine Compatibility ▼
Bridgeport Variable Speed Mills
R-8 spindle — Maxi Torque-Rite TR-100 system
Jet JTM4VS & Atlas 2VS08/3VS08
TR-100 DB164 configuration
Acer 3V-Style & CAT40 Mills
TR-100 DB273 (3V-style) and DB285 (CAT40) configurations
Kent KTM3VKF, KTM4VKF & KTM5VKF
TR-100 DB286 (R8) and DB289 (NMTB40) configurations
Jet JTM1050 & Summit VS350
TR-100 DB325 (Jet) and DB343 (Summit) configurations, R8
Trak DPM / ProtoTRAK Machines
OEM cross-reference to Southwestern Industries part 22581-1, across ProtoTRAK MX3 and KMX control generations
Important Information ▼
This Is the Power Head Only
TR-279 is the air gun assembly by itself — the only power head Maxi Torque-Rite offers across their drawbar platform. The complete Power Drawbar Assembly comes complete with filter, regulator, lubricator, drawbar, extra-long air hose, bottle of air tool oil, grease, and all mounting hardware. If you need the full assembly, contact a Parts Specialist for pricing and availability.
Confirm Your Drawbar Configuration
If you're not sure which DB configuration your machine uses, send your make, model, and spindle taper to confirm before ordering.
Also Available Separately ▼
Replacing More Than the Head?
If your steel drawbar is worn along with the power head, browse Collection Here for replacement drawbars, or see the full Trak Machine Tools Catalog for other DPM and ProtoTRAK components.
