
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X200-40B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X200-40B is a double-acting, single-rod JIS compact cylinder built for applications requiring precise extend-end positioning. It features a 32mm bore and a 200mm stroke, which is a made-to-order long-stroke variant exceeding the standard 100mm maximum for this bore size. An external threaded stop with a lock nut limits how far the rod extends, providing a usable extend range of 160 to 200mm. The retract stroke remains completely unaffected by this adjustment. Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore.
This model includes a male M14x1.5 piston rod thread for direct load coupling and uses PT1/8 ports. It operates at pressures from 0.15 to 1.0 MPa and travels at speeds of 30-500 mm/s. Deceleration is handled by a fixed NBR elastomer bumper at each end rather than an adjustable air cushion. While the body features magnetic-switch grooves, this specific unit ships without a magnet, so external sensors will not detect the piston position.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X200-40B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 200 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×200 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Dial in the exact extend position of a clamping fixture during setup. The external stop allows operators to tune the 160-200mm range without machining custom spacer rings.
Adjust the extend stroke on a packaging line when switching to a different carton size. The lock nut secures the new end position quickly to maintain line pacing.
Test different extend endpoints for a pressing operation on an automated assembly machine. Fine-tune the contact depth against the workpiece before locking the final position.
When sizing this cylinder, note the 32mm bore delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa. Stepping down to a 25mm bore reduces push to 245.4 N, while stepping up to a 40mm bore increases push to 628.3 N. If your machine only requires a fixed 200mm extend position, a standard ACQ32X200 cylinder suffices. For setups needing on-the-fly end-position tuning within a 40mm window, the ACQJ32X200-40B is the correct choice. Confirm your ordering essentials: 32mm bore, 200mm full stroke, 40mm adjustable window, male rod thread, and no magnet.
Quick checklist
This 32mm bore cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa. At 0.7 MPa, the push force is 562.9 N, with a maximum push of 82 kgf at 1.0 MPa. The 40mm adjustable window allows the usable extend range to be set anywhere from 160mm up to the full 200mm stroke.
The external M12x1.25 threaded stop with a lock nut physically limits the rod's extend travel, shortening the stroke within the 40mm window. It does not alter the piston area, so the output force remains identical to a standard ACQ. Deceleration is managed by a fixed elastomer bumper at each end, not an adjustable air cushion, so you may need an external shock absorber for high-energy loads.
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