Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S
The AirTAC Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S is a genuine JIS-standard guided cylinder with a Ø40mm bore and 125mm 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.
- BoreØ40 mm
- Stroke125 mm
- Port size1/8"
- BearingBrass sliding bearing
- Non-rotating±0.06°
- 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-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S
The B02-TCM40X125S is AirTAC's welding-industry dedicated variant of the TCM40X125S, engineered for fixturing and clamping in automated weld cells. The B02- prefix simply designates this application scope; mechanically, it is a standard JIS guided twin-rod cylinder with a brass sliding bearing. A central drive piston runs between two guide rods in a single integrated body, generating 628 N of push at 0.5 MPa. Because the guide unit itself prevents rotation, you can skip mounting an external linear rail.
This 40 mm bore model holds a tight ±0.06° non-rotating tolerance, keeping a gripper or clamping plate perfectly square under off-centre loads. The brass sliding bearing is the key advantage in a welding environment: it easily shrugs off dust, grit, and hard knocks that would jam a steel-ball linear guide. It features a Ø16 mm piston rod and 1/8" ports. Stroke ends are damped by fixed elastomer pads rather than an adjustable cushion, and the standard built-in magnet works with CS1 reed or DS1 electronic switches in the four body slots.
Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S Technical Specifications
| Model | Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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.
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-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S
| TC | Tri-rod (guided, twin-rod) cylinder, double acting. |
|---|---|
| M | Bearing: Brass sliding bearing (M = brass sliding). |
| 40 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL40X125 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Where the Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S Is Used
Spot Weld Cell Clamp
Delivers 628 N of clamping force at 0.5 MPa to hold heavy steel panels in a robotic spot-weld cell, where the brass sliding bearing tolerates weld spatter and grit that would destroy a ball guide.
Off-Centre Fixture Slide
Pushes an unbalanced weld fixture arm while maintaining a strict ±0.06° non-rotating tolerance, ensuring the part stays square despite the radial load and side torque.
Welding Line Gate Stop
Acts as a heavy-duty stop gate on a transfer line carrying welded sub-assemblies, absorbing the horizontal impact of arriving pallets with roughly double the impact resistance of a plain cylinder.
Is the Airtac B02-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S the Right Cylinder?
Selecting this 40 mm bore involves sizing your thrust requirements carefully. Dropping down to a Ø32 cylinder yields about 402 N of push at 0.5 MPa, while stepping up to a Ø50 provides 982 N, letting you shift a size in either direction to match your exact weld-clamping force. If your fixture demands ultra-low friction or high-precision vertical load handling, the sister TCL series with its steel-ball linear bearing is the better route. Keep in mind that air pressure drives both extension and retraction; if a load must stay put when air is lost or a valve is centered, the guide resists rotation but not gravity, so fit an external rod lock or pilot check valve. Replacement requires matching the 40 mm bore, 125 mm stroke, 1/8" PT ports, and the standard S magnet.
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-TCM Welding Dedicated Triple-Axis Cylinder B02-TCM40X125S FAQ
This 40 mm bore double-acting cylinder generates 628 N of push and 528 N of pull at 0.5 MPa. At 0.7 MPa, the push increases to 880 N. The theoretical maximum force is 128 kgf.
The B02- prefix marks this as AirTAC's welding-industry dedicated variant of the TCM40X125S; it shares the exact same brass sliding bearing, seals, and physical specs as the base model. Regarding end-of-stroke damping, each end lands on a fixed TPU bumper—there is no adjustable air cushion or cushion screw to set.
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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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