Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB
The AirTAC ACQJ40X45-30SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts the EXTEND end position. You can fine-tune the usable extend range from 15 mm up to the full 45 mm directly on your machinery without swapping parts. The RETRACT stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, the 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 unit includes the -S magnet for reed or solid-state sensing and the -B male rod end (M14x1.5) for direct load coupling. It uses a PT1/8 port, a Ø16 mm piston rod, and fixed NBR elastomer bumpers at each end for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 45 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 ACQJ40X45-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 ACQJ40X45-30SB Is Used
Machining Fixture Stops
Dial in the exact clamping extend position on a CNC machining fixture during part-changeover without fabricating new mechanical spacers.
Carton Sealing Tampers
Adjust the extend reach on packaging line carton-sealing tampers to accommodate varying box heights on the fly.
Bending Press Trial Positions
Set trial end positions on a metal bending press to find the perfect material deflection angle before finalizing the stroke.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30SB the Right Cylinder?
When sizing this 40 mm bore actuator, consider the adjacent options: stepping down to a 32 mm bore yields 402.1 N push, while moving up to a 50 mm bore provides 981.8 N push at 0.5 MPa. If your application never requires stroke length changes after initial setup, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version correctly, confirm the 40 mm bore, 45 mm full stroke, 30 mm adjustment window, the -S magnet, and the -B male M14x1.5 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 ACQJ40X45-30SB FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull, and 879.6 N push at 0.7 MPa. The maximum push force is 128 kgf at 1.0 MPa. The full stroke is 45 mm with a 30 mm adjustment window, giving a usable extend range of 15-45 mm. The external adjuster thread is M12x1.25.
No, the external stop alters only the extend length, not the piston area, so force remains identical to a standard ACQ. The cylinder relies on fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions. For high kinetic energy loads, use an external shock absorber or slow the approach speed.
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 ACQJ40X45-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.