This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X70-30S, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X70-30S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X70-30S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X70-30S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S
Double acting compact cylinder with an adjustable stroke, the ACPJ16X70-30S carries a 16 mm bore and a 70 mm stroke that a stop screw trims by up to 30 mm, giving a usable extend range of 40-70 mm. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those rise to 140.7 N and 105.6 N, with a theoretical ceiling of 20.5 kgf at 1.0 MPa. The -S code means the optional magnet is fitted, so CMSE / DMSE reed or solid-state switches can be clipped on for end-of-stroke sensing.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body cannot. A rule of thumb: about 60 N of that 100.5 N push is realistic working force at 0.5 MPa, which lifts roughly 3 kg vertically with a 2:1 margin - enough for small fixtures and light parts. Note the adjuster is a mechanical end stop only; on air loss the piston still drifts. This model is discontinued: the current-production drop-in is ACEJ16X70, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-30S |
| Bore size | Ø16 mm |
| Stroke | 70 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 75 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ16X70-30S (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø16mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 75 N |
| 0.7 MPa | 106 N |
| Max (@1.0 MPa) | 15 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S Is Used
Fixture clamp with tunable stroke
On a small milling fixture, the 30 mm window lets a technician trim the 70 mm extend stroke to clamp parts of different heights without changing cylinders, using about 60 N of usable force at 0.5 MPa.
Position-verified ejector
With the fitted magnet and a DMSE solid-state switch, a PCB tray ejector confirms the rod has fully retracted before the conveyor indexes, running at 30-500 mm/s.
Compact press for connector assembly
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits inside a benchtop press head where 140.7 N push at 0.7 MPa seats small connectors.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S with the ACEJ16X70-30S
At 100.5 N push (0.5 MPa) this 16 mm bore suits light clamping and part-presenting duty; step down to a 12 mm bore (56.5 N) for smaller loads or up to a 20 mm bore (157.1 N) when more force is needed. The 30 mm window lets one cylinder serve several stroke positions between 40 and 70 mm. FA/FB flange and LB foot mountings plus I/Y rod knuckles bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Replacement: ACEJ16X70.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-30S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa, 140.7 N push and 105.6 N pull; theoretical maximum 20.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window, so the extend stroke is trimmable from 70 mm down to 40 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, port M5x0.8, rod thread M4x0.7 female.
It is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod and a fixed TPU bumper at both ends, saving about 50% of the mounting length of an ISO 15552 profile cylinder. The ACPJ family is discontinued; the current-production drop-in is ACEJ16X70 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X70-30S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X70-30S replacement — usually within 7-8 hours.