
The AirTAC Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM50X75S is a genuine JIS-standard guided cylinder with a Ø50mm bore and 75mm 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 AirTAC B02-TCM50X75S is a JIS guided twin-rod double-acting cylinder featuring a brass sliding bearing. The B02- prefix designates this as a welding-industry dedicated variant of the base TCM50X75S, meaning it is mechanically identical to the standard model but targeted for welding-line automation. A drive piston operates between two guide rods in a single integrated body, eliminating the need for an external linear guide. Delivering 982 N of push at 0.5 MPa, this 50 mm bore unit handles substantial side loads and torque. Its brass sliding bearing shrugs off dust, grit, and weld spatter where a steel-ball guide would jam, offering roughly double the horizontal impact resistance of a plain cylinder.
Precision is maintained under off-centre loads with a non-rotating tolerance of ±0.05°, keeping clamps or fixtures perfectly square. The Ø20 mm piston rod is driven through 1/4" ports, while two independent upper and side port groups allow pneumatic plumbing from whichever face is clear of obstructions. Stroke termination is absorbed by fixed TPU bumpers at both ends, as TC series cylinders do not utilize adjustable air cushions. The standard built-in magnet enables position feedback via CS1 reed or DS1 electronic switches in any of the four sensor slots.
| Model | Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM50X75S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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. |
| ×75 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL50X75 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Secures heavy steel fixtures in a robot spot-welding cell. The brass sliding bearing tolerates weld spatter and knocks, delivering 982 N of clamping force while maintaining ±0.05° alignment.
Acts as a rugged stopper gate on a conveyor moving fabricated frames. The twin guide rods absorb the radial impact of incoming pallets without bending, where a ball bearing would fail from shop grit.
Pushes an asymmetrical weldment into a machining station. The integrated guide carries the torque from the offset load, keeping the plate square throughout the 75 mm travel.
When sizing this model, compare its 982 N thrust at 0.5 MPa against adjacent bores: a Ø40 bore yields 628 N, whereas a Ø63 bore provides 1559 N. Choose the TCL series with its steel-ball linear bearing instead if your welding cell demands low-friction precision or high vertical load capacity. To replicate this cylinder, specify a 50 mm bore, 75 mm stroke, 1/4" PT ports, and the standard S magnet. Remember that a TCM does not hold its load if air pressure drops or the valve is centered—the rod drifts, as the guide resists rotation rather than gravity; integrate an external rod lock or pilot check valve for fail-safe clamping.
Quick checklist
At 0.5 MPa, this double-acting cylinder generates 982 N of push and 825 N of pull. At 0.7 MPa, the push force is 1374 N. The maximum theoretical force is 200 kgf.
The B02- prefix indicates this is an AirTAC welding-industry dedicated variant of the TCM50X75S, mechanically identical to the base model. It features fixed rubber TPU bumpers at each end to soften stops, but it has no adjustable air cushion or cushion screw.
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