
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X100-50 is a double-acting JIS compact cylinder with a 100 mm full stroke and a 50 mm adjustment window. An external threaded stop with a lock nut limits the extend travel, yielding a usable extend range of 50 to 100 mm. You tune the end position directly on the machine without changing parts. The retract stroke remains unaffected.
Because the piston area is unchanged, force is identical to a standard ACQ of this bore. The 16 mm rod delivers 628.3 N push at 0.5 MPa, and the body uses a PT1/8 port. Fixed elastomer bumpers handle end-of-stroke deceleration, while integrated grooves allow mounting reed or solid-state sensors when a magnet is specified.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-50 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 100 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. |
| ×100 | 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 for different raw material thicknesses on a milling fixture without machining new stop collars.
Adjust the extend stroke on the fly when switching between small and large corrugated box blanks on a folder-gluer line.
Set trial end positions during light assembly press setup, tweaking the 50 to 100 mm extend travel to find the optimal crimp depth.
If you need less push force at 0.5 MPa, the 32 mm bore yields 402.1 N. For heavier loads, the 50 mm bore provides 981.8 N. This 40 mm model hits 628.3 N push and 527.8 N pull. A fixed-stroke ACQ suffices if your extend position never varies. Confirm your ordering essentials: 40 mm bore, 100 mm full stroke, 50 mm window, female rod thread M8x1.25, and whether you need the S magnet for sensors.
Quick checklist
Push force is 628.3 N and pull is 527.8 N at 0.5 MPa, with a push of 879.6 N at 0.7 MPa and a max push of 128 kgf at 1.0 MPa. The full stroke is 100 mm with a 50 mm window, giving a usable extend range of 50-100 mm. The 16 mm rod uses an M8x1.25 female thread, the port is PT1/8, and the external adjuster thread is M12x1.25.
No. The external threaded stop limits only the extend length, leaving the retract stroke unaffected. Because the piston area remains the same, force is identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration rather than adjustable air cushions. Note that a plain ACQ does not hold its load on air loss; use an external rod lock for fail-safe holding.
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