This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X45S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X45S in place of this model. 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 ACP Compact Cylinder ACP20X45S
The AirTAC Airtac ACP Compact Cylinder ACP20X45S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X45S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE20X45S
- 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 ACP Compact Cylinder ACP20X45S
The ACP20X45S is a double acting DIN-standard compact cylinder with a 20 mm bore and 45 mm stroke, driving a 10 mm hard-chrome S45C rod from a hard-anodized aluminium body. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa, with a theoretical ceiling of 32 kgf at 1.0 MPa. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length cylinder cannot. The S in the code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing.
Plan the real work around about 94 N of usable push at 0.5 MPa (roughly 60% of the rating), which is enough to lift about 8 kg vertically with a 2:1 margin. Air supply is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed runs 30-500 mm/s, and fixed TPU bumpers at both ends absorb end-of-travel shock without any adjustment. Note this model is discontinued: the current-production drop-in is the ACE20X45 in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP20X45S Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP20X45S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X45S |
| Bore size | Ø20 mm |
| Stroke | 45 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE20X45S (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACE20X45S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP20X45S
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| 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 (adjustable stroke).
Where the Airtac ACP Compact Cylinder ACP20X45S Is Used
Fixture clamping on CNC jigs
The 157.1 N push at 0.5 MPa clamps small aluminium or plastic workpieces in drilling and milling jigs, and the short body fits where fixture space is tight.
Position-verified ejectors
With the -S magnet fitted, CMSE or DMSE switches confirm the 45 mm eject stroke on small assembly stations, cutting misloaded-part escapes.
Carton push-off on benchtop packers
About 8 kg of vertical-lift equivalent makes this bore a fit for nudging lightweight cartons off a benchtop conveyor at 30-500 mm/s.
Replacing the Airtac ACP Compact Cylinder ACP20X45S with the ACE20X45S
Size by force: if 157.1 N push at 0.5 MPa is more than the job needs, the 16 mm bore gives 100.5 N; if it falls short, the 25 mm bore delivers 245.4 N. The 45 mm stroke sits well inside the 100 mm maximum standard stroke for this bore, so it is a catalogue part. Remember a plain cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must be held. FA/FB flange, LB foot and CA/CB clevis mountings bolt straight on, and the -S magnet already fitted accepts CMSE / DMSE switches. For new designs, order the ACE20X45 instead, since this ACP is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACE20X45S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP20X45S FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull; theoretical maximum is 32 kgf at 1.0 MPa. It is double acting, runs 30-500 mm/s on 0.15-1.0 MPa (22-145 psi) air, and the 45 mm stroke is within the 100 mm standard limit for the 20 mm bore.
Order the ACE20X45, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 45 mm stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP was built to a DIN-standard compact format. The ACE keeps the same mounting family and the optional -S magnet for CMSE / DMSE switches.
Request a Quote for the ACE20X45S
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X45S replacement — usually within 7-8 hours.