Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke200 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B
The AirTAC ACQJ40X200-75B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the EXTEND end position. You can fine-tune the usable extend range from 125 mm up to the full 200 mm directly on your machinery without swapping parts. The RETRACT stroke remains completely unaffected by this adjustment. This specific unit is a long-stroke variant, as the 200 mm travel exceeds the 100 mm standard maximum for a 40 mm bore, making it a made-to-order solution for extended reach applications.
Because the adjuster alters stroke length only, the piston area stays the same, meaning the force output is identical to a standard ACQ of this bore. You get 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, scaling up to 879.6 N push at 0.7 MPa, with a maximum push capacity of 128 kgf at 1.0 MPa. This -B configuration includes a male M14x1.5 piston rod end for direct load coupling, while the body retains integrated sensor grooves (though this specific SKU ships without a magnet). Deceleration is handled by a fixed NBR elastomer bumper at each end.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 200 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 ACQJ40X200-75B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 ACQJ40X200-75B Is Used
Extended-Reach Fixturing
Ideal for CNC machining centers where a 200 mm travel is needed to clear the work envelope, but the clamping extend position must be dialed back by up to 75 mm for varying part heights.
Product Changeover Stops
Deploy on packaging conveyors to act as a physical product stop, rapidly adjusting the extend endpoint within the 125-200 mm window during SKU line changeovers without changing cylinder mounts.
Long-Stroke Assembly Presses
Suitable for automated assembly lines requiring a long reach to position components, using the external M12x1.25 stopper nut to set precise trial end positions before final locking.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-75B the Right Cylinder?
When sizing this 40 mm bore actuator, stepping down to a 32 mm bore yields 402.1 N push at 0.5 MPa, whereas stepping up to a 50 mm bore provides 981.8 N push. If your application does not require variable extend end-positioning, a fixed-stroke standard ACQ cylinder will suffice and simplify your setup. To order this adjustable version correctly, confirm the 40 mm bore, the 200 mm full stroke, the 75 mm adjustable window, the male M14x1.5 rod thread, and note the absence of the -S magnet option. Keep in mind this is a long-stroke made-to-order variant.
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 ACQJ40X200-75B FAQ
This 40 mm bore cylinder delivers 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 usable extend range is 125-200 mm, achieved by shortening the full 200 mm stroke by up to a 75 mm window.
The external M12x1.25 threaded stop with a lock nut limits the extend stroke length only, leaving retract unaffected and keeping force identical to a standard ACQ. Deceleration relies on a fixed elastomer bumper, not an adjustable air cushion. For fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required, as a plain ACQ-type cylinder will drift.
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 ACQJ40X200-75B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.