Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30B 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 ACQJ32X70-30B
The AirTAC ACQJ32X70-30B is a double-acting JIS compact cylinder with an external stroke-adjustment mechanism. A threaded stop and lock nut on the rod-end side restricts how far the piston extends, yielding a usable extend range of 40 to 70 mm. The retract stroke remains fixed at the full 70 mm. Because the adjuster only limits travel, the piston area stays constant, meaning force output matches a standard ACQ exactly.
This 32 mm bore variant features a male M14x1.5 piston rod end that couples directly to your load. It includes a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body retains standard magnetic-switch grooves, though this specific SKU ships without a magnet. Operating pressure spans 0.15 to 1.0 MPa, and the adjuster itself uses an M12x1.25 thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30B |
|---|---|
| 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 ACQJ32X70-30B
| 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 ACQJ32X70-30B Is Used
Machining Fixture Stops
Dial in the exact extend position for clamping raw castings on a CNC mill, allowing 40 to 70 mm of travel to accommodate varying part tolerances without swapping cylinders.
Packaging Changeover
Adjust the pusher end-stop on a cartoning machine during a product format changeover, fine-tuning the stroke to match new box dimensions rapidly.
Assembly Press Trials
Set trial end positions for pressing bearings, safely testing different engagement depths on the fly before locking the external nut for production runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-30B the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 25 mm unit provides 245.4 N push at 0.5 MPa, while a 40 mm unit yields 628.3 N. This 32 mm model generates 402.1 N push and 301.6 N pull at 0.5 MPa, peaking at 82 kgf maximum push at 1.0 MPa. If your required extend position never changes, a fixed-stroke ACQ suffices; otherwise, this adjustable version prevents fabricating new parts during setup. Confirm your ordering essentials: 32 mm bore, 70 mm full stroke, 30 mm adjustment window, male rod thread (-B), and no magnet.
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 ACQJ32X70-30B FAQ
This 32 mm bore cylinder provides 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 full stroke is 70 mm with a 30 mm adjustable window, giving a usable extend range of 40 to 70 mm. The retract stroke remains unaffected.
The external M12x1.25 threaded stop with lock nut limits only the extend travel; it does not alter piston area, so force is identical to a standard ACQ. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. Note that this model ships without a sensor magnet, though grooves are present, and the cylinder will not hold its load if air pressure is lost.
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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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