
The AirTAC B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM50X150S is a genuine JIS-standard guided cylinder with a Ø50mm bore and 150mm stroke on twin guide rods. Its integrated brass sliding bearing gives high radial-load and impact resistance — about double the horizontal impact tolerance of a plain cylinder, holding the tool square to ±0.05° of rotation without any external linear guide.
The B02-TCM50X150S is AirTAC's welding-industry dedicated variant of the TCM50X150S, engineered for clamping and fixturing in automated weld cells. The leading B02- prefix designates this specific application scope without altering the base mechanics: it remains a JIS-standard, double-acting twin-rod guided cylinder. A central drive piston runs between two guide rods supported by brass sliding bearings, integrating the drive and anti-rotation guide into one compact body. This design entirely removes the need to align a separate external linear rail. Delivering 982 N of push at 0.5 MPa, it carries heavy off-centre loads with a non-rotating accuracy of ±0.05°.
The brass sliding bearing is the defining feature for dirty environments, shrugging off grit, coolant splash, and weld spatter where a steel-ball linear guide would jam or wear prematurely. It provides roughly double the horizontal impact resistance of a plain cylinder, absorbing the hard lateral knocks common in robotic welding lines. Plumbing is simplified by two independent port groups (upper face and side) on the 1/4" ports, allowing airlines to route from whichever direction is clear of the torch. Stroke terminations are damped by fixed TPU bumpers rather than an adjustable air cushion. The standard built-in magnet feeds position signals to CS1 reed or DS1 electronic switches mounted in any of the four sensor slots.
| Model | Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM50X150S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Bearing | Brass sliding bearing |
| Port size | 1/4" |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Non-rotating tolerance | ±0.05° (retracted) |
| Cushion | Rubber bumper |
| Max std stroke | Up to 250 mm |
Specifications follow the official AirTAC TCL/TCM series datasheet (JIS standard). Confirm against the product label before installation. Thread options: PT (blank) / G / NPT. Every TC model ships with a built-in magnet for sensor switches.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max | 200 kgf | |
Force is set by the bore and piston rod (Ø20 mm); the twin guide rods carry side load and torque, not thrust. Actual usable force is lower than theoretical due to friction and back-pressure.
| TC | Tri-rod (guided, twin-rod) cylinder, double acting. |
|---|---|
| M | Bearing: Brass sliding bearing (M = brass sliding). |
| 50 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL50X150 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Holds heavy mild-steel brackets square for a robotic MIG torch. The brass sliding bearing tolerates spatter and grinding dust, while 982 N of push secures the part against weld distortion forces.
Acts as a heavy stop gate on a transfer line feeding a spot welder. The twin guide rods absorb the 50 mm bore impact when a pallet hits the stop, maintaining a ±0.05° angle on the blocking plate.
Extends a clamping arm 150 mm into a weld fixture. The integrated guide carries the resulting moment load without an external rail, saving alignment time in the tight cell.
Selecting this 50 mm bore yields 982 N of thrust at 0.5 MPa (1374 N at 0.7 MPa). If you need slightly less force, stepping down to a Ø32 bore provides 402 N; moving up to a Ø63 bore offers 1559 N of push at the same 0.5 MPa. The 150 mm stroke sits well within the 250 mm maximum standard for this bore. When replacing this unit, match the 50 mm bore, 150 mm stroke, 1/4" port size, PT thread form, and the standard S magnet. If your welding fixture requires extreme vertical positioning precision or very low friction, consider the sister TCL series with its steel-ball linear bearing instead of this brass sliding version. Note that the guide prevents rotation but does not resist gravity: if air pressure drops or the valve centres, the rod will drift downward, so fit an external pilot check valve if the fixture must hold its clamp position during an emergency stop.
Quick checklist
This 50 mm bore cylinder generates 982 N of push and 825 N of pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, the push force reaches 1374 N. The theoretical maximum force is 200 kgf.
The B02- prefix marks this as AirTAC's welding-industry dedicated variant; mechanically, it is identical to the standard TCM50X150S. It uses fixed rubber TPU bumpers at each end to soften the stroke stop, meaning there is no adjustable air cushion screw to set or maintain.
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