Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B
The ACQJ40X300-10B is a double-acting, single-rod JIS compact cylinder engineered for applications requiring precise extend-position tuning on the machine. An external threaded stop with a lock nut limits the outward stroke, providing a usable extend range of 290-300mm from the 300mm full stroke, while the retract stroke remains unaffected. This long-stroke made-to-order variant exceeds the 100mm standard maximum for bore 40.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 628.3N push and 527.8N pull at 0.5MPa. The unit features a 16mm piston rod with an M14x1.5 male thread for direct load coupling, PT1/8 ports, and fixed NBR elastomer bumpers at each end for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 300 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 ACQJ40X300-10B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 ACQJ40X300-10B Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part sizes on a CNC fixture without machining new spacer plates.
Product Changeover Diverter
Fine-tune the 290-300mm extend reach of a sorting gate during packaging line format changes.
Prototype Positioning
Establish optimal end stops on a test rig by adjusting the external M12x1.25 lock nut during trials.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-10B the Right Cylinder?
This 40mm bore cylinder provides 879.6N push force at 0.7MPa. If less power is needed, the 32mm bore offers 562.9N push, or for heavier demands, the 50mm bore yields 1374.4N. A standard fixed-stroke ACQ is sufficient if your end position never varies. Confirm your ordering essentials: 40mm bore, 300mm full stroke, 10mm adjuster window, male rod thread (-B), and note this model ships without a magnet.
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 ACQJ40X300-10B FAQ
It provides 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 300mm, with a 10mm adjustment window yielding a usable extend range of 290-300mm.
The external M12x1.25 threaded stop only shortens the extend stroke length; it does not alter piston area, so force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions.
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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