
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30S 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 ACQJ40X200-30S is a double-acting, single-rod JIS compact cylinder engineered for adjustable extend positioning. It features an external M12x1.25 threaded stop with a lock nut that limits the outward travel. You can fine-tune the extend end-position on the machine across a 170-200mm usable range (the 200mm full stroke minus a 30mm window) without swapping parts, while the retract stroke remains completely unaffected. This 200mm variant is a made-to-order long-stroke unit, exceeding the 100mm standard maximum for this 40mm bore.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 628.3N push and 527.8N pull at 0.5MPa. The unit integrates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Equipped with the -S magnet, the body includes sensor grooves compatible with both reed and electronic solid-state switches for position feedback. Operating pressure spans 0.15-1.0MPa, with a PT1/8 port and a 16mm rod featuring an M8x1.25 female rod-end thread.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30S |
|---|---|
| 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 precise pressing depth during product changeovers by adjusting the external stop, avoiding the need to manufacture custom spacer collars for each new assembly fixture.
Set exact extension distances for sorting gates on packaging lines, allowing operators to shorten the stroke by up to 30mm to accommodate varying package sizes on the fly.
Safely test end positions on new machining fixtures by limiting the initial extend stroke, preventing crashes before locking the nut and committing to the full 200mm travel.
If you do not require end-position tuning, a fixed-stroke ACQ40X200 will deliver identical force while simplifying setup. When sizing for thrust, note the neighbouring bores: a 32mm bore provides 402.1N push, whereas a 50mm bore yields 981.8N at 0.5MPa. To order this adjustable variant correctly, confirm the 40mm bore, 200mm full stroke, 30mm adjustment window, the -S magnet requirement, and the female rod thread. For high-speed or high-energy loads, consider adding an external shock absorber, as the built-in bumper only decelerates near the stroke ends.
Quick checklist
The cylinder provides 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The full stroke is 200mm, featuring a 30mm adjustment window that allows the usable extend range to be fine-tuned from 170mm to 200mm.
The external M12x1.25 threaded stop alters only the extend stroke length, leaving the piston area and output force identical to a standard ACQ. The retract stroke is unaffected, and end-of-travel deceleration is handled by fixed NBR elastomer bumpers rather than an adjustable air cushion.
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