
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ140X200-30S is a double-acting JIS compact cylinder featuring an external extend stop. A threaded rod with a lock nut lets you set the extend end position on the machine, providing a usable forward range of 170 to 200 mm. The return stroke remains completely unaffected by this adjustment.
Because the piston area stays constant, output force equals a standard ACQ of this bore, yielding 7696.9 N push at 0.5 MPa. This big-bore unit uses a PT3/8 port, a Ø32 mm piston rod, and fixed elastomer bumpers. The built-in magnet (-S) supports reed or solid-state switches for position sensing.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 200 mm |
| Adjuster thread | M27×2.0 |
| Port size | PT3/8 |
| 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 | M22×2.5 (F) / M30×1.5 (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 | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 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. |
|---|---|
| 140 | 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 170-200 mm extend position during setup for large metal-forming presses without machining custom spacers.
Modify the end stop length on packaging lines quickly when switching between different pallet or product dimensions.
Establish trial end positions for clamping massive automotive components securely before finalizing the mechanical hard stop.
When sizing this 140 mm bore actuator, consider the adjacent options: the 125 mm bore provides 6135.9 N push, while the 160 mm bore yields 10053.1 N at 0.5 MPa. If your machine never requires end-position tuning, a fixed-stroke ACQ cylinder suffices. To order this adjustable version correctly, confirm the 140 mm bore, 200 mm full stroke, 30 mm window, the S magnet, and the female M22x2.5 rod thread.
Quick checklist
The usable extend range is 170-200 mm (200 mm full stroke minus the 30 mm window). It delivers 7696.9 N push and 7294.8 N pull at 0.5 MPa, 10775.7 N push at 0.7 MPa, with a maximum push of 1570 kgf at 1.0 MPa.
The external M27x2.0 threaded stop with lock nut limits only the extend length, leaving the retract stroke untouched. Force remains identical to a standard ACQ because the piston area is unchanged. The fixed NBR bumpers decelerate the load near stroke end, but a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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