Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B
The AirTAC ACQJ40X75-30B is a double-acting JIS compact cylinder featuring an external male-threaded rod end (M14x1.5) for direct load coupling. An external stop screw with lock nut limits the extend end position, providing a usable forward range of 45-75mm from a 75mm full stroke, while the retract stroke remains unaffected.
Because the piston area is unchanged, output force equals a standard ACQ of this bore: 628.3N push and 527.8N pull at 0.5MPa. The body includes fixed elastomer bumpers for end-of-stroke deceleration and retains sensor grooves, though this specific unit ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 75 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 ACQJ40X75-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 ACQJ40X75-30B Is Used
Product Changeover Stops
Adjust the external stop to shift the extend position during packaging line format changes without machining new spacer rings.
Trial End Positions
Dial in the exact 45-75mm extend distance on a sorting diverter to test different package sizes before locking the nut.
Setup-Varying Fixtures
Fine-tune clamping depth on a machining fixture directly on the press, adapting to various material thicknesses quickly.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-30B the Right Cylinder?
If 527.8N pull is insufficient, consider the ACQJ50X75 variant delivering 824.6N pull at 0.5MPa; conversely, if 402.1N push is adequate, the ACQJ32X75 saves space. If your end position never varies, a fixed-stroke ACQ40X75 is simpler. When ordering, confirm the 40mm bore, 75mm full stroke, 30mm window, male rod thread, and whether a magnet is needed.
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 ACQJ40X75-30B FAQ
It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The usable extend range is 45-75mm via a 30mm window. It features a PT1/8 port, male M14x1.5 rod thread, and an M12x1.25 adjuster thread.
The external threaded stop physically limits forward travel without changing piston area, so force remains identical to a standard ACQ. It uses fixed elastomer bumpers for deceleration, not an adjustable air cushion. Note that a plain ACQ-type cylinder does not hold its load on air loss; for fail-safe holding, use 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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