Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke70 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B
The ACQJ80X70-40B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You get a usable forward range of 30 to 70 mm, while the retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
This variant includes a male M22x1.5 rod-end thread for direct load coupling and uses a PT3/8 port. It carries no internal magnet, yet the body retains sensor grooves for adding switches later. A fixed NBR elastomer bumper at each end handles end-of-stroke deceleration.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 70 mm |
| Adjuster thread | M20×1.5 |
| Port size | PT3/8 |
| 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 | M16×2.0 (F) / M22×1.5 (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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B Is Used
Varying Fixture Setups
Dial in the exact extend stop from 30 to 70 mm on the fly when changing workpiece heights on a machining fixture.
Product Changeover Stops
Reposition the extend limit without swapping cylinders or mechanical spacers during a packaging line format change.
Trial End Positions
Fine-tune the forward stroke during testing on automated assembly equipment to find the optimal clamping depth.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B the Right Cylinder?
Choosing this 80 mm bore yields 2513.2 N push and 2267.8 N pull at 0.5 MPa. If you need less force, stepping down to a 63 mm bore provides 1558.6 N push; moving up to 100 mm offers 3927.0 N. A fixed-stroke ACQ is sufficient if your end position never varies. Confirm your ordering details: 80 mm bore, 70 mm full stroke, 40 mm window, male rod thread, and no 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40B FAQ
It delivers 2513.2 N push and 2267.8 N pull at 0.5 MPa, 3518.5 N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa. The full stroke is 70 mm with a 40 mm window, giving a usable extend range of 30 to 70 mm.
The M20x1.5 threaded stop with a lock nut limits only the extend length, meaning force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration, not an adjustable air cushion or load-holding brake. For fail-safe load holding on air loss, use an external rod lock.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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