Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 90mm 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.
- BoreØ25 mm
- Stroke90 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU
With the U flat-end back cover, the MAC25X90SU bolts flush to a fixed plate when the load travels in a straight line and no pivot is wanted. Inside, a 25 mm bore makes 245 N forward and 206 N back at 0.5 MPa, or 343 N at 0.7 MPa, as a double-acting unit with adjustable cushioning at both stroke ends; the stainless tube and hard-chrome rod handle damp shop air better than painted barrels.
Lift maths: the 0.5 MPa push equals about 25 kg of vertical force, so keeping a 2:1 margin the cylinder raises roughly 12 kg parts. Cushion needles should be backed off at first run and opened gradually, and the standard magnet suits CMSG, DMSG or EMSG switches without a special piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 90 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×90 | 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 MAC Stainless Steel Mini Air Cylinder MAC25X90SU Is Used
Lab carousel indexing
Indexes a sample carousel one station at a time; 206 N pull retracts the pin, and the built-in magnet triggers a DMSG switch at each park position.
Carton flap tucking
Tucks top flaps on 300 mm wide cartons at a packing bench; the U flat-end cover bolts flush to the bench frame and the cushion quiets each tuck.
Dough tray ejector
Ejects stacked dough trays from a bakery forming station; stainless tube and hard-chrome rod wash down without flaking paint.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X90SU the Right Cylinder?
Compare output before ordering: 20 mm bore gives 157 N push at 0.5 MPa, this 25 mm bore 245 N, and the 32 mm bore 402 N. The U flat-end cover suits bolt-through fixing to a machine plate; add an FA flange or LB foot if you prefer a separate mounting face, or SDB for a pivot. If a dropped supply must not let the load fall, plan a rod lock or check valve - cushioning is not a brake. The 90 mm stroke sits well inside the 500 mm standard ceiling for this bore, and the built-in magnet means no special piston is needed for CMSG sensing.
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 MAC Stainless Steel Mini Air Cylinder MAC25X90SU FAQ
Rated figures: 245 N push and 206 N pull at 0.5 MPa, 343 N push and 289 N pull at 0.7 MPa, and 50 kgf theoretical maximum at 1.0 MPa. Supply pressure range is 0.15-1.0 MPa (22-145 psi).
Back both cushion needle screws off before start-up, then open them gradually until end-of-stroke impact disappears at your working speed - anywhere in the 30-800 mm/s band.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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