
The AirTAC Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL63X50S is a genuine JIS-standard guided cylinder with a Ø63mm bore and 50mm stroke on twin guide rods. Its integrated steel-ball linear bearing gives low-friction, high-precision travel — well suited to vertical lifts and high-load, high-accuracy moves, holding the tool square to ±0.04° of rotation without any external linear guide.
The AirTAC B02-TCL63X50S is a JIS-standard, double-acting twin-rod guided cylinder engineered for welding-line automation. The leading B02- prefix designates this as AirTAC's welding-industry dedicated variant of the base TCL63X50S, meaning it shares the exact same robust physical specifications while being targeted at clamping and fixturing in robot welding cells. A central drive piston runs between two guide rods in a single integrated body, eliminating the need for an external linear slide.
Equipped with a steel-ball linear bearing, this unit provides low-friction, high-precision travel that prevents the stick-slip often seen in plain bushings, making it highly reliable for vertical lifts and high-cycle positioning. The 63 mm bore generates 1559 N of push force at 0.5 MPa, while the twin-rod geometry holds a strict ±0.04° non-rotating tolerance to keep fixtures square under off-centre loads. Stroke ends are damped by fixed elastomer pads rather than an adjustable cushion, and the standard built-in magnet supports position feedback.
| Model | Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL63X50S |
|---|---|
| Series | TCL JIS guided (twin-rod) cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Bearing | Steel-ball linear 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 | ±0.04° (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. |
|---|---|
| L | Bearing: Steel-ball linear bearing (L = linear ball). |
| 63 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCM63X50 (brass sliding bearing, more impact/dust tolerant). Thread codes: blank = PT · G · T = NPT.
Secures heavy steel frames in spot-welding robots. The 1559 N push force locks the part firmly, while the ±0.04° anti-rotation tolerance ensures the clamp jaw stays perfectly square under offset weight.
Lowers and raises welding torch brackets. The steel-ball linear bearing delivers smooth, stick-slip-free vertical travel, critical for maintaining precise torch height during automated passes.
Halts loaded pallets carrying raw weldments at the station index point. The integrated twin-rod body absorbs the radial impact of the arriving load without requiring a separate external guide rail.
When sizing this model, compare its 1559 N push at 0.5 MPa against adjacent bores to ensure proper fit: stepping down to a 50 mm bore yields 982 N, while moving up to an 80 mm bore provides 2513 N. If your welding cell experiences heavy impact loads or high dust contamination from grinding debris, consider the sister TCM63 series instead, as its brass sliding bearing handles abusive radial loads better than the precision steel-ball bearing. To replace this unit, match the 63 mm bore, 50 mm stroke, 1/4" port with PT thread form, and the standard S magnet.
Remember that the guide rods resist rotation but not gravity; if air pressure drops or the valve is centred, the rod will drift downward. For fail-safe clamping on a vertical welding fixture, add an external rod lock or a pilot-operated check valve. The 50 mm stroke falls well within the 250 mm maximum standard limit, so it ships as a readily available configuration.
Quick checklist
This 63 mm bore cylinder features a 1/4" port and a Ø20 mm piston rod. It delivers 1559 N of push and 1402 N of pull at 0.5 MPa, 2182 N of push at 0.7 MPa, and a maximum theoretical force of 318 kgf at 1.0 MPa.
The B02- prefix simply marks this as AirTAC's welding-industry dedicated variant of the TCL63X50S; mechanically, it is identical to the standard model. Regarding end-of-stroke damping, each end lands on a fixed TPU rubber bumper—there is no adjustable air cushion or cushion screw to set. It also includes a standard magnet for CS1 reed or DS1 electronic switches.
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