Tri Tool 208B BEVELMASTER Pipe Beveling Machine
An ID-mounted lathe for 2 to 8 in pipe ends
The Tri Tool 208B BEVELMASTER is a portable, ID-mounting weld end preparation machine tool for beveling, facing and counterboring 2 in through 8 in pipe. In the air version described by this technical specification, the feed knob sits in line at the back of the machine and the pneumatic drive motor is mounted at a right angle to the lathe head.
The lathe reacts its own cutting torque through the mandrel, and the expanding mandrel centres and aligns the tool in the bore. All wrenches needed for operation are supplied with the system, tool bits excepted. At about 25.4 kg (56 lb), the lathe is light enough to be handled by one operator.
Cutting capacities and materials
Tri Tool rates the 208B for 1.5 in pipe in schedules 5 and 10, 2 in pipe from schedule 5 through schedule 160, and 3 in through 8 in pipe in all schedules, up to a maximum wall of 22.2 mm (0.875 in). With the standard mandrel it can also bevel tubing up to 22.2 mm wall with a maximum OD of 219.2 mm (8.63 in) and a minimum ID of 41.4 mm (1.63 in). Counterboring covers inside diameters from 50.8 to 211.6 mm (2.00–8.33 in).
The machine cuts mild steels, chrome steels up to Rc 35, stainless steel, copper-nickel and aluminium within the size and wall limits. Inconel and some other high-temperature alloys may need special procedures, depending on the wall thickness and the end preparation, and Tri Tool’s engineering department advises on these cases.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / model | Tri Tool / 208B BEVELMASTER Air |
| Pipe range | 2–8 in; 3–8 in all schedules, 2 in Sch 5–160, 1.5 in Sch 5 and 10 |
| Maximum wall thickness | 22.2 mm (0.875 in) |
| Counterbore ID range | 50.8–211.6 mm (2.00–8.33 in) |
| Mounting | Expanding mandrel, manually actuated draw rod |
| Maximum rotating head diameter | 232.7 mm (9.16 in) |
| Length parallel to pipe axis | 456.0 mm (17.95 in) |
| Length over motor | 714.5 mm (28.13 in) |
| Maximum width | 257.3 mm (10.13 in) |
| Weight | 25.4 kg (56 lb) approx. |
| Final drive | Gear driven |
| Pneumatic motor | 310 rpm free speed; 155 rpm at maximum horsepower |
| Air requirement | 40 L/s (85 cfm) at 621 kPa (90 psi) |
| Cutting head speed | 62 rpm maximum; 31 rpm at maximum horsepower; 10–50 rpm functional range |
| Feed | 2.1 mm (0.083 in) per turn of the feed handle; 50.8 mm (2.00 in) maximum travel |
| Speed control | On/off safety lever valve and twist-type air flow control valve |
Setting up for site work
The air motor needs 85 cfm at 90 psi for full horsepower, and the air supply must pass through a filter, regulator and lubricator to keep the motor warranty valid. Size the compressor and hose for that flow before the machine goes to site.
The system is delivered complete with the 208B sub-assembly, tool holder assembly, mandrel assembly, air motor assembly, jaw block assembly sets, shipping kit, carrying case and operator’s manual. A flange facer kit and an elbow mandrel kit are listed as accessories. Tool bits are chosen by end preparation profile and material and are ordered separately.
Tri Tool also publishes separate technical specifications for hydraulic and electric versions of the 208B. This page covers the air model; confirm the drive before ordering spare parts.
Documents and quotation
The Tri Tool technical specification for the 208B BEVELMASTER Air is available on this page. Browse Pipe Cutting & Bevelling Machines for related end preparation tools.
For a quotation, send the pipe sizes and schedules, the material, the end preparation drawing or bevel angle, the drive version and any accessories or tool bits you need.
- Datasheet Tri Tool 208B BEVELMASTER Air technical specification Download
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