Tri Tool 304 Tube Squaring Machine
The Tri Tool 304 is a tube squaring and end-preparation machine for 0.250–4.500-inch OD tubing (6.35–114.3 mm), with listed walls up to 0.250 inch (6.35 mm). Its cutting head accepts up to three tools for suitable combinations of facing, beveling and counterboring. Ask Justram to match the clamping and drive to your application.
Tube end preparation with multiple cutting tools
The Model 304 supports the tube in OD saddles and advances the cutting head through a graduated feed. The head can hold up to three bits, allowing compatible end-preparation operations in one setup. A removable stand supports bench work and selected portable applications.
Model 304 specifications
| Specification | Listed value |
|---|---|
| Tube outside diameter | 0.250–4.500 in (6.35–114.3 mm) |
| Maximum listed wall thickness | 0.250 in (6.35 mm), subject to material and operation |
| Cutting-head tool positions | Up to three |
| Axial feed travel | 0.560 in (14.2 mm) |
| Feed-dial graduations | 0.001 in (0.025 mm); graduations are not a finished-part tolerance |
| Listed weight with electric motor | 18.25 lb (approximately 8.3 kg) |
| Drive choices | Dual-range variable-speed electric or pneumatic |
These figures refer to the Model 304 technical specification. Confirm the drive generation, selected saddle, cutter configuration and power requirements for the supplied unit.
Saddles, collets and accessories
Quick-change saddles support size changes. A collet adapter is available for compatible 400-series collets; this is a separate accessory. Short-perch saddles, custom fitting supports and compatible controls require application selection.
The published pneumatic specification calls for 55 cfm at 90 psi (621 kPa). Match the filtered, regulated and lubricated supply to the supplied motor. For electric packages, confirm voltage, frequency and current from the motor documentation.
Material and end-finish requirements
Provide tube OD, wall thickness, material, bevel drawing and any counterbore or ID-deburring dimensions. Carbon steel, stainless steel, chrome alloys, copper-nickel and aluminium need suitable tools and cutting conditions. Inconel and other high-temperature alloys may require special procedures.
For high-purity tubing, specify saddle materials, contact surfaces, cleanliness and lubricant requirements. Confirm the finished preparation against the welding procedure and inspect the ID and OD edges.
Technical documents and selection
See the manufacturer-authored Model 304 technical specification (April 2011, PDF) as a legacy reference. For smaller tubing, compare the Model 302. Contact Justram with the workpiece details and available bench or site access.
