Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S
A 25 mm bore mini cylinder in a rolled, riveted stainless barrel, MACJ25X80-75S is double-acting with an adjustable extend stroke and a variable air cushion at both ends. The -75 code gives a wide trim window: the stop screw shortens extend travel anywhere from the full 80 mm down to about 5 mm, set on site without shims. Air runs 0.15-1.0 MPa (22-145 psi) and cycle speed spans 30-800 mm/s.
At 0.5 MPa the bore pushes 245.3 N, so plan on roughly 147 N of usable work and about 12 kg of vertical lift with a 2:1 margin. The hard-chrome plated rod over the stainless tube handles damp and washed-down spots that defeat painted minis, and the standard-fit magnet lets CMSG, DMSG or EMSG switches drop on for end-of-stroke signalling.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke + 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 300 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S Is Used
Carton push-off on a case packer
The 75 mm trim window lets one cylinder serve shallow and deep cartons: set 245 N of push at 0.5 MPa and dial extend travel per SKU.
Bottle gate on a rinsing line
Wet surroundings favour the stainless barrel and chrome rod; the dual air cushion soaks up gate slam at up to 800 mm/s.
Depth-stop press for brass inserts
Trim the extend stroke anywhere in the 75 mm window to seat inserts in plastic housings, checking position with a CMSG switch.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S the Right Cylinder?
Size by force: the smaller 20 mm bore gives 157 N push at 0.5 MPa with an 8 mm rod and M8x1.25 thread, the larger 32 mm bore reaches 402 N with a 12 mm rod and M10x1.25 - stay at 25 mm when 245 N at 0.5 MPa matches the work. FA flange and LB foot mounts cover fixed fixturing; I and Y knuckles suit pivoting tooling. Keep the 80 mm rod span clear of side loads by guiding tooling externally. The trim screw sets the extend end position only: if air is lost the piston can still drift, so it is not a substitute for a load-holding brake.
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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S FAQ
Double-acting with an adjustable extend stroke and variable air cushion at both ends. At 0.5 MPa it delivers 245.3 N push and 206.1 N pull; at 0.7 MPa, 343.4 N push. The theoretical ceiling for the 25 mm bore is 50 kgf at 1.0 MPa. Rod is 10 mm with M10x1.25 male thread, ports are 1/8", speed runs 30-800 mm/s, and supply spans 0.15-1.0 MPa (22-145 psi).
The stainless barrel plus a 20 um hard-chrome plated rod shrugs off mild corrosion and washdown that pit painted or bare-aluminium minis, and the covers are rolled onto the tube for a sealed, riveted joint. Inside, the two-way piston seal stores its own grease, extending relube intervals.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.