
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-100 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X200-100 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine from 100 mm up to the full 200 mm without changing parts, while the retract stroke remains unaffected. This long-stroke variant exceeds the 100 mm standard maximum for bore 40, so it is supplied as a made-to-order unit.
Because the piston area is unchanged, the force is identical to a standard ACQ of this bore, delivering 628.3 N push at 0.5 MPa. The cylinder features a fixed elastomer bumper at each end rather than an adjustable air cushion, and the body includes sensor grooves for mounting switches. It uses a PT1/8 port, a Ø16 mm piston rod, and an M12x1.25 adjuster thread.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-100 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | 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 exact extend end positions on machining fixtures during product-changeover without swapping out the entire cylinder.
Adjust the pusher stroke on a conveyor transfer line to handle varying package sizes on the fly.
Tune the clamp reach on packaging equipment to securely hold different carton profiles during setup.
This 40 mm bore provides 628.3 N push at 0.5 MPa, sitting between the 32 mm bore at 402.1 N and the 50 mm bore at 981.8 N. If your extend travel is fixed and never needs on-machine tweaking, a standard ACQ40X200 will suffice. When ordering, confirm the 200 mm full stroke, the 100 mm adjuster window, and whether you need the female M8x1.25 rod-end thread or the male M14x1.5 option. Note that this long-stroke configuration is a non-standard, made-to-order variant. A plain ACQ-type does not hold its load on air loss or when a valve is centred; for a fail-safe hold, specify an external rod lock or pilot-operated check valve.
Quick checklist
The force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 200 mm, and the 100 mm adjustment window allows a usable extend range of 100-200 mm. The retract stroke is unaffected. This is a long-stroke variant exceeding the 100 mm standard maximum for bore 40.
An external threaded stop with a lock nut limits the extend travel, changing only the stroke length and not the piston area, so force remains unchanged. The cylinder uses a fixed elastomer bumper at each end rather than an adjustable air cushion; for high energy loads, add an external shock absorber. Additionally, a plain ACQ-type does not hold its load on air loss or when a valve is centred, so use an external rod lock or pilot-operated check valve for fail-safe holding.
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