Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S
The AirTAC Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S is a genuine JIS-standard guided cylinder with a Ø40mm bore and 70mm 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 ±0.05° of rotation without any external linear guide.
- BoreØ40 mm
- Stroke70 mm
- Port size1/8"
- BearingSteel-ball linear bearing
- Non-rotating±0.05°
- CushionRubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S
The B02-TCL40X70S is a JIS guided twin-rod double-acting cylinder where the B02- prefix marks it as the welding-industry dedicated variant of the TCL40X70S. Mechanically identical to the base model, it integrates a drive piston between two guide rods supported by steel-ball linear bearings. This architecture eliminates the need for an external linear slide, saving space and alignment effort in tight robotic welding cells. Delivering 628 N of push at 0.5 MPa, it handles substantial clamping and fixturing tasks.
Precision is critical in automated welding, and this bore maintains a ±0.05° non-rotating tolerance to keep clamps and fixtures perfectly square under off-centre loads. The low-friction linear ball bearing ensures smooth, stick-slip-free travel ideal for vertical lifts. It features a Ø16 mm piston rod on 1/8" ports, and stroke ends are damped by fixed elastomer pads rather than an adjustable cushion. Four sensor slots accept CS1 reed or DS1 electronic switches via the standard built-in magnet.
Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S Technical Specifications
| Model | Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S |
|---|---|
| Series | TCL JIS guided (twin-rod) cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Bearing | Steel-ball linear 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 | ±0.05° (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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S
| TC | Tri-rod (guided, twin-rod) cylinder, double acting. |
|---|---|
| L | Bearing: Steel-ball linear bearing (L = linear ball). |
| 40 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCM40X70 (brass sliding bearing, more impact/dust tolerant). Thread codes: blank = PT · G · T = NPT.
Where the Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S Is Used
Spot Welding Gun Actuation
Leveraging the 628 N push at 0.5 MPa, this cylinder positions spot welding tips accurately. The steel-ball linear bearing ensures friction-free movement, while the ±0.05° non-rotating tolerance keeps the gun alignment true during high-cycle robotic operations.
Welding Fixture Clamping
Holds structural frames or chassis components steady for automated MIG welding. The integrated twin-rod guide supports the off-centre torque of a clamping arm, removing the need to bolt on a separate linear rail in the cell.
Vertical Electrode Feed
Ideal for lowering electrode heads into position. The low-friction linear ball bearing prevents stick-slip on the downward stroke, guaranteeing smooth, precise travel at speeds up to 500 mm/s without drifting under load.
Is the Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S the Right Cylinder?
When sizing this unit, consider moving a step in either direction: the Ø32 bore yields roughly 402 N of push at 0.5 MPa, while the Ø50 bore provides about 982 N, letting you adjust if your fixturing force requirements shift. If your welding cell involves heavy impact loads or high dust from grinding spatter, the sister TCM series with its brass sliding bearing handles radial abuse better than the precision linear ball bearing. To replace this unit, match the 40 mm bore, 70 mm stroke, 1/8" port, PT thread form, and standard S magnet.
Note that a guided cylinder does not secure a load if air pressure drops or the valve is centred; the rod will drift downward. The twin rods resist rotation, not gravity, so fit an external rod lock or pilot-operated check valve if a fail-safe hold is required on vertical welding clamps.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Side load / torque the guide must carry
- ✓ TCL (precision, low friction) vs TCM (impact, radial load)
- ✓ Stroke & mounting face (top / bottom / rear)
- ✓ Port/thread type (PT/NPT/G)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check The guide unit takes side load & torque — but do not exceed the max safe load/torque for your stroke.
- check Mount from the top, bottom (screw or T-slot) or rear face; use the precision locating holes.
- check Do not disassemble the fixing block or guide unit — factory-set precision.
- check Fit CS1 / DS1 magnetic switches in the four sensor slots as needed.
Airtac B02-TCL Welding Special Triple-Axis Cylinder B02-TCL40X70S FAQ
At 0.5 MPa, this 40 mm bore cylinder generates 628 N of push and 528 N of pull. Increasing the pressure to 0.7 MPa raises the push force to 880 N. The theoretical maximum force is 128 kgf at 1.0 MPa.
The B02- prefix designates this as a welding-industry dedicated variant of the TCL40X70S; mechanically, the specs are identical to the base guided cylinder. Each end lands on a fixed TPU bumper to soften the stop, but there is no air-cushion screw to set or adjust on this series.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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