Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke80 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B
The ACQJ40X80-30B is a double-acting JIS compact cylinder with an 80mm full stroke and a 30mm external adjustment window. A threaded stop and lock nut on the rod-end side restricts outward travel, yielding a usable extend range of 50 to 80mm. Retraction travel remains fixed at the original 80mm. Because the piston area is unaltered, output force perfectly matches a standard ACQ of the same bore.
This variant features a male M14x1.5 piston rod end for direct load coupling and a PT1/8 port. The body includes integrated magnetic-switch grooves, though this specific unit ships without a magnet. Travel deceleration relies on a fixed NBR elastomer bumper at each end rather than an adjustable air cushion.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 80 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 ACQJ40X80-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 ACQJ40X80-30B Is Used
Machining Fixture Stops
Dial in the exact 50-80mm extend position for varying part heights on a CNC lathe without machining new spacer blocks.
Carton Changeover Flaps
Quickly alter the end stop for different carton sizes on a packaging line, using the M12x1.25 adjuster to shorten the stroke.
Assembly Press Trial
Safely test multiple end positions during light press assembly operations before locking the rod nut at the optimal point.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30B the Right Cylinder?
Providing 628.3N of push force at 0.5MPa, this 40mm bore sits between the 32mm (402.1N) and 50mm (981.8N) sizes. If your extend target is permanently fixed at 80mm, a standard ACQ40X80 will suffice. When ordering, confirm the 40mm bore, 80mm full stroke, 30mm window, the male M14x1.5 rod thread, and note that the -S magnet option is omitted here.
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 ACQJ40X80-30B FAQ
At 0.5MPa it delivers 628.3N push and 527.8N pull; at 0.7MPa push is 879.6N. Maximum push is 128kgf at 1.0MPa. The 80mm full stroke can be shortened by up to 30mm, giving an extend range of 50-80mm.
The external M12x1.25 threaded stop with lock nut limits only the extend length, so force remains identical to a standard ACQ. It does not hold the load on air loss; deceleration comes from fixed NBR bumpers, not an adjustable cushion.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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