Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30SB 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 ACQJ40X80-30SB
The AirTAC ACQJ40X80-30SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke anywhere from 50 mm up to the full 80 mm directly on the machine, saving setup time during product changeovers. The retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore, delivering 628.3 N push and 527.8 N pull at 0.5 MPa.
This model includes a built-in piston magnet (-S) compatible with reed or solid-state electronic switches via its integrated sensor grooves. It features a male-thread piston rod end (-B) sized M14x1.5 for direct load coupling. The body uses a fixed elastomer NBR bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Operating pressure spans 0.15-1.0 MPa, and the standard PT1/8 port ensures straightforward pneumatic plumbing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30SB |
|---|---|
| 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 ACQJ40X80-30SB
| 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 ACQJ40X80-30SB Is Used
Machining Fixture Stops
Dial in the extend stroke from 50 to 80 mm on CNC machining fixtures to accommodate varying raw material lengths without swapping out cylinder mounting hardware.
Product Changeover Diverter
Quickly reposition the extend end stop on packaging conveyor diverters during format changeovers, using the external M12x1.25 adjuster to set the exact push distance.
Clamping Depth Trials
Test exact clamping depths on assembly presses by limiting the extend stroke, preventing material damage while maintaining the full 628.3 N push force at 0.5 MPa.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-30SB the Right Cylinder?
When sizing this 40 mm bore actuator, consider the 32 mm option (402.1 N push @0.5 MPa) if your payload is lighter, or step up to the 50 mm bore (981.8 N push @0.5 MPa) for heavier dynamics. If your end-position never varies, a fixed-stroke ACQ cylinder is sufficient and more compact. For this adjustable version, confirm your ordering essentials: 40 mm bore, 80 mm full stroke, 30 mm adjuster window, the -S magnet, and the -B male rod thread (M14x1.5). The external adjuster uses an M12x1.25 thread for precise stroke limitation.
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 ACQJ40X80-30SB FAQ
This 40 mm bore cylinder provides 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 80 mm, but the external stop allows you to shorten the extend stroke by up to 30 mm, yielding a usable extend range of 50-80 mm.
No, the adjuster only limits how far the rod extends, leaving the retract stroke unchanged. Because the piston area remains the same, force is identical to a standard ACQ cylinder. The unit relies on a fixed elastomer bumper for deceleration, and the -S magnet works with reed or 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 ACQJ40X80-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.