
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ50X100SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø50mm bore and 100mm stroke, PT1/4 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
The AirTAC B02-ACQ50X100SB is a double-acting JIS compact cylinder engineered for welding-line automation. The B02- prefix marks this as a welding-industry dedicated variant of the standard ACQ50X100SB, meaning it shares the exact same physical specs while being targeted at fixturing and clamping in robot welding cells. It delivers a robust 981.8 N push at 0.5 MPa alongside an 824.6 N retract force.
Featuring a short C-clip and riveted body, this thin design saves substantial axial mounting depth compared to round-body alternatives. The 50 mm bore incorporates a 20 mm piston rod and a male M18x1.5 thread for direct load coupling. An NBR elastomer bumper at each end absorbs end-stop energy, and the built-in magnet supports position sensing.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ50X100SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| 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 |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Drives medium-force clamping arms in automated spot welding cells, using the 981.8 N extend force to hold steel assemblies firmly under the welding gun.
Indexes heavy weldment fixtures into the working zone, leveraging the 100 mm stroke to clear the robot path during electrode changes.
Pushes completed welded frames out of the cell using the male M18x1.5 rod end for a rigid connection to the ejection plate.
When sizing this actuator, stepping down to a 40 mm bore yields 628.3 N push at 0.5 MPa, while stepping up to a 63 mm bore provides 1558.6 N. This 50 mm option sits perfectly in the middle for medium-force weld clamping. Note that a plain compact cylinder drifts when air pressure is lost or the valve is centred; the fixed NBR bumper only decelerates the piston near the stroke end and does not lock the load. For fail-safe holding of heavy weld fixtures, an external rod lock or pilot-operated check valve is required.
This configuration includes a 100 mm stroke (the maximum standard stroke for this bore), a PT1/4 port, a built-in magnet (-S) for AirTAC reed or electronic switches, and a male-threaded rod end (-B). Operating speed spans 30-500 mm/s.
Quick checklist
This 50 mm bore cylinder provides a push force of 981.8 N and a pull force of 824.6 N at 0.5 MPa. At 0.7 MPa, the push force is 1374.4 N. The maximum push force is 200 kgf at 1.0 MPa. The 100 mm stroke shown is the maximum standard stroke available for this bore.
The B02- prefix designates this as AirTAC's welding-industry dedicated line of the ACQ50X100SB; mechanically and dimensionally, it is identical to the base ACQ model. For end-stop deceleration, it relies on a fixed NBR elastomer bumper at each end rather than an adjustable air cushion. For high-energy welding automation cycles, you may need to slow the approach or add external shock absorbers.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.