Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB 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 ACQJ32X70-30SB
The AirTAC ACQJ32X70-30SB is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend stroke. You get a usable extend range of 40-70 mm (the 70 mm full stroke minus up to 30 mm), while the retract stroke remains unaffected. Because the piston area stays constant, output force equals a standard ACQ of this bore.
This unit includes a male M14x1.5 rod-end thread for direct load coupling and a built-in magnet (-S) for position sensing. It uses a PT1/8 port and relies on a fixed NBR elastomer bumper at each end for deceleration. The external adjuster utilizes an M12x1.25 thread for precise on-machine positioning.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB |
|---|---|
| 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 ACQJ32X70-30SB
| 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 ACQJ32X70-30SB Is Used
Machining Fixture Stops
Dial in the exact extend position during setup or tooling changes on a CNC lathe without machining new spacers.
Carton Forming Adjustments
Modify the push depth for varying package sizes on a packaging line using the external stopper nut.
Assembly Press Tacking
Test and set trial end positions for pressing subcomponents before finalizing the mechanical stroke.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB the Right Cylinder?
If your application needs less push force, stepping down to a 25 mm bore yields 245.4 N @0.5 MPa, whereas a larger 40 mm bore provides 628.3 N. If the end position never varies, a fixed-stroke ACQ cylinder is sufficient. For this model, confirm the 32 mm bore, 70 mm full stroke, 30 mm window, the -S magnet, and the -B male rod thread when ordering.
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 ACQJ32X70-30SB FAQ
It delivers 402.1 N push and 301.6 N pull @0.5 MPa, 562.9 N push @0.7 MPa, and a maximum push of 82 kgf @1.0 MPa. The full stroke is 70 mm with a 30 mm window, giving a usable extend range of 40-70 mm. Retract stroke and force are identical to a standard ACQ.
The external M12x1.25 threaded stop with a lock nut limits the extend stroke only, leaving retract unaffected. Deceleration relies on a fixed NBR elastomer bumper, not an adjustable air cushion. The included -S magnet works with reed or electronic solid-state switches for position detection.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.