
The AirTAC Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X50S is a genuine JIS-standard guided cylinder with a Ø40mm bore and 50mm 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 ±0.06° of rotation without any external linear guide.
The AirTAC B02-TCM40X50S is a JIS-standard twin-rod guided cylinder engineered for welding-line automation. The "B02-" prefix designates this as a welding-industry dedicated variant of the base TCM40X50S, meaning it shares the exact same physical specifications while being targeted at fixturing and clamping in robot cells. As a double-acting drive, it generates 628 N of push and 528 N of pull at 0.5 MPa.
Integrated brass sliding bearings provide roughly double the horizontal impact resistance of a plain cylinder, shrugging off grit and hard knocks where a steel-ball guide would jam. The twin guide rods yield a ±0.06° non-rotating accuracy, keeping a clamping plate square under offset loads. Plumb the 1/8" ports from either the upper face or side, and rely on the fixed TPU bumpers to soften stroke ends without needing an adjustable cushion screw.
| Model | Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X50S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Bearing | Brass sliding bearing |
| Port size | 1/8" |
| 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 | ±0.06° (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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max | 128 kgf | |
Force is set by the bore and piston rod (Ø16 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). |
| 40 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL40X50 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Drives an off-centre clamping arm in a robotic spot welder, using 628 N of push to hold panels; the brass sliding bearing tolerates weld spatter and impacts better than a ball guide.
Positions a locating pin plate for heavy steel assemblies with ±0.06° non-rotating accuracy, ensuring parts seat squarely before the torch fires.
Acts as a heavy-duty stop gate on a pallet transfer line, absorbing the radial shock of arriving pallets via its twin guide rods without needing an external linear rail.
Select this 40 mm bore when your weld cell demands 628 N of thrust at 0.5 MPa over a compact 50 mm stroke. If you need less force, the Ø32 bore provides 402 N of push; stepping up to the Ø50 bore yields 982 N. Choose the sister TCL series with its steel-ball linear bearing only if your task requires high-precision vertical movement with minimal friction. To replace this unit, match the 40 mm bore, 50 mm stroke, 1/8" PT ports, and the standard S magnet.
Note that the guide prevents rotation but cannot fight gravity; if air pressure drops, the rod will drift. Install an external rod lock or pilot-operated check valve for fail-safe load holding on vertical clamps.
Quick checklist
At 0.5 MPa it provides 628 N of push and 528 N of pull; at 0.7 MPa the push increases to 880 N. The theoretical maximum force is 128 kgf. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
The B02- prefix simply marks this as AirTAC's welding-industry dedicated variant of the TCM40X50S; it is mechanically identical to the base model. Stroke ends are damped by fixed rubber TPU bumpers, as TC series guided cylinders do not feature adjustable air cushions.
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