Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA
The AirTAC Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø0mm bore and 280mm stroke, PT/G 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.
- BoreØ0 mm
- Stroke280 mm
- Port sizePT/G
- Acting typeDouble acting + cushion
- Rod thread
- CushionVariable air cushion, both ends
About the Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA
Spanning 280 mm, the MAC25X280SCA shows why the round-body MA family stays popular: a stainless tube rolled onto aluminium covers forms a sealed, riveted shell that needs no tie rods to service, and the 25 mm bore pushes 245.3 N at 0.5 MPa. Both ends carry a variable air cushion, so fast cycles at up to 800 mm/s land soft instead of cracking the covers.
Dial the 245.3 N down to about 147 N when budgeting real work - that is a vertical lift of roughly 12 kg at a 2:1 margin, or 25 kg at the theoretical limit. The rear CA cover is drilled for a pivot pin, letting the cylinder swing with a linkage arm, and a standard magnet on the piston pairs with CMSG / DMSG / EMSG switches for end-of-stroke signalling without custom pistons.
Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA Technical Specifications
| Model | Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø0 mm |
| Stroke | 280 mm |
| Acting type | Double acting + cushion |
| Port size | PT/G |
| Rod thread |
| 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.
Theoretical Output Force (Ø0mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 0 N | 0 N |
| 0.7 MPa | 0 N | 0 N |
| Max (@1.0 MPa) | 0 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 0 | Bore size in mm. |
| ×280 | 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.
Where the Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA Is Used
Film web-guide arm
The pivot rear cover mounts the cylinder to a rocking guide arm that steers film webs on a converting machine; cushions settle the arm without oscillation.
Tray lowering at a checkweigher
A counterweighted tray drops 280 mm between weigh cycles; the rod lifts about 12 kg of tray plus product with margin to spare.
Bottle-line stopper gate
A pivoting stopper holds PET bottles at the filler infeed; the stainless barrel copes with syrup splash and daily hose-down.
Is the Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA the Right Cylinder?
Compare before you commit: the 20 mm bore makes 157 N at 0.5 MPa and the 32 mm bore makes 402.2 N, bracketing this model's 245.3 N. Once air is removed the piston is not held - cushions damp the last millimetres but are no brake - so spec a rod lock for loads that must hang.
The pin-eye rear cover plus SDB pivot bracket or LB foot covers most frames, and I / Y knuckles isolate side load over the 280 mm span, protecting the 10 mm rod. The cylinder breathes through a 1/8" port.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac B01-MAC Series Special Purpose Cylinder B01-MAC25X280SCA FAQ
25 mm bore at 0.5 MPa: 245.3 N extend, 206.1 N retract. At 0.7 MPa extension climbs to 343.4 N, and theoretical maximum is 50 kgf at 1.0 MPa. Work with about 147 N for long life.
No - every MA-series piston carries a magnet as standard, so CMSG, DMSG or EMSG reed switches snap onto the 280 mm barrel for position feedback straight out of the box.
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