Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke100 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S
The AirTAC ACQJ40X100-40S is a double-acting JIS compact cylinder with a 40mm bore and a 100mm full stroke. An external M12x1.25 threaded stop and lock nut limit the extend end position, providing a usable forward range of 60-100mm. You can fine-tune the forward endpoint directly on the machine without swapping parts, while the retract stroke remains unaffected.
Because the adjuster only changes travel length and not piston area, output force stays identical to a standard ACQ of this size. You get 628.3N push and 527.8N pull at 0.5MPa, or 879.6N push at 0.7MPa. The body uses fixed NBR elastomer bumpers at each end for end-of-travel deceleration, and the included -S piston magnet works with reed or solid-state sensors via the integrated grooves.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 100 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 ACQJ40X100-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 ACQJ40X100-40S Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC machining center during part changeovers, shortening the forward stroke from 100mm down to 60mm to accommodate varying blank sizes.
Carton Forming Stops
Adjust the pusher endpoint on the fly for different packaging carton depths without changing out the cylinder or adding spacer blocks to the assembly.
Assembly Press Tonnage
Set precise trial end positions for pressing bearings or pins, ensuring the rod travels exactly the required distance before hitting the internal bumper.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-40S the Right Cylinder?
If you need less thrust, the 32mm bore variant delivers 402.1N push at 0.5MPa; stepping up to the 50mm bore provides 981.8N push. Choose this 40mm model when your setup requires roughly 628N of forward force and on-the-fly endpoint adjustments within the 60-100mm window. If your application never requires stroke changes, a fixed standard ACQ cylinder will suffice. Confirm your ordering essentials: 40mm bore, 100mm full stroke, 40mm adjuster window, -S magnet, and the default female M8x1.25 rod-end thread with 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 ACQJ40X100-40S 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 full stroke is 100mm, but the external stop allows you to adjust the usable extend range from 60mm to 100mm.
No, the adjuster only limits how far the rod extends, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not an adjustable air cushion. The -S magnet also allows you to mount reed or electronic solid-state switches for position sensing.
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 ACQJ40X100-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.