Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB 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 ACQJ80X70-20SB
The AirTAC ACQJ80X70-20SB 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 extend stroke on the machine across a 50 to 70 mm usable range (70 mm full stroke minus the 20 mm window) without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, yielding 2513.2 N push and 2267.8 N pull at 0.5 MPa. This bore includes a 25 mm piston rod, PT3/8 porting, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration. The -S option provides a built-in magnet for position sensing, while the -B option supplies a male M22x1.5 rod-end thread for direct load coupling.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB |
|---|---|
| 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 ACQJ80X70-20SB
| 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 ACQJ80X70-20SB Is Used
Machining Center Stops
Dial in the exact extend position for workholding clamps on a CNC mill without machining custom spacers.
Product Changeover Diverters
Quickly reposition a sorting gate on a packaging line to handle different carton widths on the fly.
Assembly Press Stroke Setup
Set precise trial end positions for pressing bearings during initial equipment commissioning and recipe tweaks.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB the Right Cylinder?
When sizing this 80 mm bore actuator, stepping down to a 63 mm bore drops the 0.5 MPa push force to 1558.6 N, whereas stepping up to a 100 mm bore raises it to 3927.0 N. If your application never requires end-position variance, a fixed-stroke ACQ cylinder provides the same holding power in a simpler package. For this adjustable model, confirm the 80 mm bore, 70 mm full stroke, 20 mm adjustment window, the -S magnet for electronic or reed switches, and the -B male M22x1.5 rod thread during ordering.
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 ACQJ80X70-20SB 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 usable extend range is 50 to 70 mm, created by adjusting the 20 mm window on the 70 mm full stroke.
An M20x1.5 threaded adjuster with a lock nut mechanically limits the extend stroke, leaving the retract stroke unaffected. Force is identical to a standard ACQ because the piston area is unchanged. Fixed elastomer bumpers decelerate the rod near stroke ends, but the cylinder will drift on air loss, so an external rod lock is required for fail-safe load holding.
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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.