Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB
The AirTAC ACQJ40X40-40SB is a double-acting JIS compact cylinder with an external extend stop. A threaded M12x1.25 adjuster and lock nut restricts rod extension, yielding a usable forward travel of 0 to 40 mm from the 40 mm full stroke. Return travel remains fixed at its original length.
Output force matches a standard ACQ because the piston area is unaltered. You get 628.3 N push and 527.8 N pull at 0.5 MPa. The -S magnet enables reed or solid-state sensing, while the -B male M14x1.5 rod end links directly to your fixture.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 40 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 ACQJ40X40-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 ACQJ40X40-40SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC lathe fixture during new product run-in without machining new spacers.
Carton Changeover
Adjust the tucking arm end position rapidly when switching between different box sizes on a packaging line.
Prototype Positioning
Find the optimal extension point for a testing probe bracket by threading the stop in or out on the fly.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-40SB the Right Cylinder?
For lighter duties, the 32 mm bore yields 402.1 N push at 0.5 MPa. If you need more thrust, the 50 mm bore provides 981.8 N. Choose this 40 mm bore if 628.3 N is sufficient. A fixed-stroke ACQ works fine if your end position never varies. Verify your order includes the 40 mm stroke, 40 mm window, S magnet, B male rod, and PT1/8 port.
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 ACQJ40X40-40SB FAQ
It delivers 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 40 mm with a 40 mm window, allowing an adjustable extend range of 0 to 40 mm.
The M12x1.25 threaded rod limits forward travel only; return stroke is unaffected. Force stays identical to a standard ACQ. Deceleration uses a fixed NBR elastomer bumper at each end. For fail-safe load holding on air loss, add an external rod lock.
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
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