
The AirTAC Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM63X70S is a genuine JIS-standard guided cylinder with a Ø63mm bore and 70mm 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-TCM63X70S is AirTAC's welding-industry dedicated variant of the TCM63X70S, sharing exact mechanical specs while targeting weld-cell automation. As a JIS guided twin-rod double-acting cylinder, it integrates a drive piston between two guide rods supported by brass sliding bearings. This configuration eliminates the need for an external linear rail, absorbing heavy side loads and impacts. Delivering 1559 N of push force at 0.5 MPa, it is built for rugged fixturing and clamping tasks.
The brass sliding bearing shines in dirty environments, shrugging off weld spatter, grit and coolant where a steel-ball guide would jam. It yields a non-rotating tolerance of ±0.05°, keeping clamps or plates perfectly square under offset loads. Air feeds via 1/4" ports, and the Ø20 piston rod moves at 30-500 mm/s. Stroke ends are damped by fixed elastomer pads rather than an adjustable cushion, and the standard built-in magnet supports CS1 reed or DS1 electronic switches across four sensor slots.
| Model | Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM63X70S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø63 mm |
| Stroke | 70 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max | 318 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). |
| 63 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL63X70 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Tolerates weld spatter and grit where a ball guide would jam, using its 1559 N push to hold heavy steel sheets flat against the gun tips.
The brass sliding bearing handles the side-load of an off-centre fixture arm, maintaining ±0.05° squareness while loading heavy frames into the cell.
Acts as a heavy gate on the exit conveyor, using its 318 kgf max theoretical force to halt freshly welded assemblies moving down the line.
This 63 mm bore provides 1559 N of thrust at 0.5 MPa. If you need less force, step down to the Ø50 bore which yields roughly 982 N; for heavier duty, the Ø80 bore gives 2513 N. Choose the sister TCL series with its steel-ball linear bearing if your weld cell requires extreme vertical precision and low friction rather than impact tolerance. To replace this unit, match the 63 mm bore, 70 mm stroke, 1/4" port, PT thread, and the standard S magnet.
Note that a TC cylinder will not hold a vertical load if air pressure drops or the valve centers, as the guide resists rotation, not gravity. For fail-safe clamping during an emergency stop, add an external rod lock or pilot-operated check valve.
Quick checklist
At 0.5 MPa it produces 1559 N of push and 1402 N of pull. At 0.7 MPa the push increases to 2182 N, with a maximum theoretical force of 318 kgf. Operating pressure spans 0.15-1.0 MPa, and the cylinder moves at 30-500 mm/s.
The B02- prefix marks this as AirTAC's welding-industry dedicated line of the TCM63X70S; it is mechanically identical to the base model without any special seals or dimensions. Each end lands on a fixed TPU bumper to soften the stop, as there is no adjustable air cushion screw to set.
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Covers non-human-caused product damage.
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