Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 640mm 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
- Stroke640 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 MAC25X640SCA
A 640 mm stroke on a 25 mm bore puts the MAC25X640SCA in the long-travel class of AirTAC's round-body MAC mini cylinders. It is double acting - air drives the rod out and pulls it back - and a variable air cushion at both ends lets you soften the stop when a fast carrier reaches the end of that long run. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; raise supply to 0.7 MPa and push rises to 343.4 N.
The stainless-steel barrel and hard-chrome plated rod shrug off washdown and damp plant air far better than painted mini bodies, and the aluminium covers are rolled onto the tube for a sealed, riveted joint. A pivot-type CA back cover is built in, so the cylinder can swing on a pin without extra brackets, and the piston magnet comes as standard - clip a CMSG, DMSG or EMSG switch on for end-of-stroke signals. In practice, budget about 147 N of that 245.3 N rating for real work at 0.5 MPa; the rest is your safety margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 640 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 MAC25X640SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×640 | 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 MAC25X640SCA Is Used
Bottling line pusher
A 640 mm stroke sweeps a full lane of bottles to the outfeed table; 245.3 N at 0.5 MPa is ample for a plastic-bottle row, and the cushioned stop keeps labels from jolting.
Pivoting gate arm
The CA pivot back cover pins straight to a swing gate on a washdown food line, where the stainless barrel resists daily hose-down better than a painted body.
Textile roll indexing
On a fabric-inspection machine, the rod lever indexes cloth rolls every cycle; the built-in magnet and a CMSG switch confirm roll position to the PLC.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA the Right Cylinder?
Compare bores before you commit: a MAC20 at 0.5 MPa pushes only 157.0 N, while stepping up to a MAC32 gives 402.2 N - if your 640 mm travel moves more than about 147 N of load, go 32 mm. Note that a plain MAC does not hold position when air drops or the valve centres; the rod drifts, so add a rod lock or pilot check valve for held loads.
On strokes this long, guide the load externally and keep side force off the 10 mm rod to avoid bending. FA flange, LB foot or SDB pivot mounts and PT ports (1/8") complete the picture.
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 MAC25X640SCA FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push reaches 343.4 N, and the theoretical maximum is 50 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi), run 30-800 mm/s, ports are 1/8", the 10 mm rod threads M10x1.25, and the 640 mm stroke is a made-to-order length.
No. Every MAC25X640SCA ships with a magnet built into the piston as standard, so AirTAC CMSG, DMSG or EMSG switches clamp straight onto the stainless barrel and signal end-of-stroke without a special piston order.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MAC Stainless Steel Mini Air Cylinder MAC25X640SCA
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.