
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X80-30SB is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the end position on the machine, yielding a usable extend range of 50 to 80 mm from the 80 mm full stroke, while the retract stroke remains unaffected. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This model includes a male M14x1.5 piston rod end for direct load coupling and an integrated magnet (-S) for position sensing. It uses a PT1/8 port, carries a 16 mm rod, and relies on fixed NBR elastomer bumpers at both ends for end-of-travel deceleration rather than adjustable air cushions.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 80 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. |
| ×80 | 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 clamping reach on a CNC fixture without machining new spacers, using the external stop to hit 50 to 80 mm extensions.
Adapt a carton sealing press for different box heights rapidly by backing off the extend limit, avoiding parts swaps during product transitions.
Test various press-in depths on an automated line by turning the M12x1.25 adjuster nut to find the optimal seating position before locking it down.
When sizing this 32 mm bore unit, note the adjacent options: a 25 mm bore provides 245.4 N push at 0.5 MPa, and stepping up to a 40 mm bore yields 628.3 N push. Choose this adjustable version only if your setup requires varying the extend endpoint; otherwise, a fixed-stroke ACQ suffices. Verify your ordering essentials: 32 mm bore, 80 mm full stroke, 30 mm adjuster window, plus the S magnet and B male rod thread.
Quick checklist
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The 30 mm window allows an extend range of 50 to 80 mm.
An external M12x1.25 threaded screw with a lock nut limits the extend stroke without altering piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration, and the built-in magnet works with reed or solid-state switches.
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