
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 400mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
Longer travel, same compact 25 mm bore: the MAC25X400SCA covers 400 mm in one stroke, pushing 245.3 N and pulling 206.1 N at 0.5 MPa. As a double-acting cushioned MAC, air does the work both ways while needle-adjustable cushions tame the stop at each end.
Rivet-packed stainless barrel, hard-chrome rod - so humidity, splashes and food-area washdowns are non-events for the body. Vertically the bore will lift about 25 kg on paper, so halve that and treat roughly 12 kg as a comfortable lift margin. The standard piston magnet accepts CMSG / DMSG / EMSG switches the day it arrives.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Folding tall-box flaps on a packing line; the 400 mm stroke clears a full carton height in one move.
Dipping a probe into an open vat - the pivot CA cover follows the arc of the swing arm.
Lifting about 12 kg of jigs or parts vertically, sized with a 2:1 margin on the 25 kg theoretical column.
If 245.3 N at 0.5 MPa is more than you need, the 20 mm bore still gives 157 N; if you want a bigger safety factor on a 400 mm travel, the 32 mm bore delivers 402.2 N. Long strokes amplify side load, so hang the load on its own linear guides and keep the rod straight. Because a plain MAC drifts when supply air stops, mount a pilot check valve or rod lock for any held position. The CA pivot cover pairs with an SDB pivot bracket; FA flange and LB foot suit fixed frames.
Quick checklist
245.3 N push and 206.1 N pull at 0.5 MPa; 343.4 N push and 288.5 N pull at 0.7 MPa; 50 kgf theoretical maximum at 1.0 MPa. Running range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speeds of 30-800 mm/s.
The MAC25X400SCA has variable air cushioning at both ends. On first run, back the needle screws fully open, cycle at low speed, then close them gradually until end-of-stroke shock disappears. Never tighten them fully shut, and remember the cushion only slows the piston near the ends - it is not a brake or position lock.
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Covers non-human-caused product damage.
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