Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB
The AirTAC ACQJ32X70-40SB is a double-acting JIS compact cylinder with a 32mm bore and 70mm full stroke. An external threaded stop with a lock nut limits the extend end position, giving a usable forward range of 30 to 70mm. The retract stroke remains unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This unit includes a male M14x1.5 piston rod end for direct load coupling and a built-in magnet for position sensing. It uses a PT1/8 port and an M12x1.25 adjuster thread. Fixed elastomer bumpers handle end-of-travel deceleration, while the integrated magnet works with reed or solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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 (Ø32mm)
| 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.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 ACQJ32X70-40SB Is Used
Machining Fixture Stops
Dial in the exact forward clamping position on a CNC fixture without machining new spacer blocks for different part families.
Packaging Diverters
Adjust the stroke length on a packaging line diverter to handle varying carton widths during rapid product changeovers.
Assembly Press Trials
Set trial end positions for pressing bearings or pins, allowing operators to fine-tune insertion depth directly on the machine.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40SB the Right Cylinder?
For 0.5 MPa push requirements, this 32mm bore delivers 402.1 N. If less force is needed, the 25mm bore provides 245.4 N, or step up to the 40mm bore for 628.3 N. If your application requires a fixed extend position every cycle without on-the-fly adjustments, a standard ACQ cylinder will suffice. When ordering this adjustable variant, confirm the 32mm bore, 70mm full stroke, 40mm window, the male rod thread (-B), and the magnet (-S).
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 ACQJ32X70-40SB FAQ
The usable extend range is 30-70mm (70mm full stroke minus the 40mm window). Force is identical to a standard ACQ: 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.
An external M12x1.25 threaded stop with a lock nut limits the forward stroke length only; it does not change the piston area or force. Retract stroke is unaffected. Fixed NBR elastomer bumpers decelerate the load at stroke ends, and the -S magnet works with reed or electronic switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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