Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB 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.
- BoreØ40 mm
- Full stroke100 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB
The AirTAC ACQJ40X100-75SB is a double-acting JIS compact cylinder with a 100mm full stroke and a 75mm adjustment window. An external threaded stop with a lock nut limits the extend travel, allowing you to set the usable extend range anywhere from 25mm up to the full 100mm directly on the machine. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 628.3N push at 0.5MPa. This SB configuration includes a male M14x1.5 piston rod end for direct load coupling and a built-in magnet for position sensing. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB |
|---|---|
| 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB
| 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).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB Is Used
Machining Clamps
Dial in the exact clamping depth on a CNC fixture without machining custom spacers, accommodating varying raw material thicknesses.
Carton Forming Stops
Adjust the extend position rapidly during packaging line product changeovers to handle different box heights.
Prototype Pressing
Establish trial end positions for pressing operations on a test rig, tweaking the 25-100mm usable range until the desired result is achieved.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB the Right Cylinder?
When sizing this 40mm bore, the adjacent 32mm bore yields 402.1N push, while the larger 50mm bore provides 981.8N push at 0.5MPa. If your application requires a fixed extend length that never varies, a standard ACQ cylinder without the external adjuster will suffice. To order this adjustable version correctly, confirm the 40mm bore, 100mm full stroke, 75mm window, the S magnet option, and the B male rod thread.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75SB FAQ
The usable extend range is 25-100mm (the 100mm full stroke minus up to 75mm). Force is identical to a standard ACQ: 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 external M12x1.25 threaded stop only shortens the extend stroke length; it does not alter piston area or force. The fixed NBR bumper decelerates the load near stroke ends. The included -S magnet works with reed or electronic solid-state switches, and a plain ACQ will drift on air loss, so use an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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