Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 35mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke35 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB
The AirTAC ACQJ40X35-30SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. With a full stroke of 35 mm and an adjustment window of 30 mm, you can fine-tune the usable extend range from 5 mm up to 35 mm directly on the machine without changing parts. The retract stroke remains completely unaffected by this mechanism. Because the piston area is unchanged, the force output is identical to a standard ACQ of the same bore.
This model includes a male-thread piston rod end (M14x1.5) for direct load coupling and a built-in piston magnet (-S) for position sensing. It uses a PT1/8 port and a 16 mm rod. Deceleration is handled by a fixed NBR elastomer bumper at each end, and the external adjuster utilizes an M12x1.25 thread. Operating pressure spans 0.15 to 1.0 MPa, with speeds from 30 to 500 mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 35 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 ACQJ40X35-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 ACQJ40X35-30SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during setup, shortening the extend stroke by up to 30 mm to accommodate different raw material thicknesses.
Packaging Diverters
Adjust the stroke end position for product changeovers on a packaging line, allowing precise sorting of varying carton sizes without swapping the cylinder.
Assembly Press Tunning
Test trial end positions on an assembly press, tweaking the extend stop to perfect the insertion depth of a component before finalizing the machine setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-30SB the Right Cylinder?
When sizing this 40 mm bore actuator, stepping down to a 32 mm bore drops the push force to 402.1 N at 0.5 MPa, while stepping up to a 50 mm bore raises it to 981.8 N at 0.5 MPa. If your application requires a fixed extend end position every cycle without variation, a standard ACQ cylinder will suffice. To order this adjustable unit correctly, confirm the 40 mm bore, 35 mm full stroke, 30 mm adjustable window, the -S magnet requirement, 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 ACQJ40X35-30SB FAQ
The usable extend range is 5-35 mm (a 35 mm full stroke minus up to a 30 mm window). The force is identical to a standard ACQ: push is 628.3 N and pull is 527.8 N at 0.5 MPa, push is 879.6 N at 0.7 MPa, and the maximum push is 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke, meaning the adjuster changes stroke length only and does not alter the piston area or force. The retract stroke is unaffected, and a fixed elastomer bumper decelerates the load at both ends. The built-in magnet (-S) works with reed or solid-state electronic switches.
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 ACQJ40X35-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.