Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm bore and 225mm 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.
- BoreØ40 mm
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MACJ40X225-100S
A 225 mm stroke plus a 100 mm stop-screw window makes this the most adaptable 40 mm MACJ in the range - set the final extend position anywhere from 125 to 225 mm on the machine. Variable air cushion at both ends tames the landing across the whole 30-800 mm/s band.
AirTAC rolls the stainless barrel, aluminium covers and a stainless block into one riveted, grease-retaining body, and hard-chrome plates the 16 mm rod for corrosion resistance in wet or washdown areas. A magnet is fitted as standard, so CMSG, DMSG and EMSG switches mount without any special order.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MAJ / MACJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -100 | 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 (double rod, 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 MACJ40X225-100S Is Used
Pallet-label applicator arm
Swings a print head against passing pallets; 100 mm of trim compensates for pallet stack heights and cushions keep the head square at contact.
Bench-top crimp press
Crimps small terminals with 628 N at 0.5 MPa (879 N at 0.7 MPa) while the cushion removes the bang at bottom dead centre.
Tote lift upper stop
Positions a lift platform's top stop anywhere in the 100 mm window; the standard magnet plus an EMSG switch signals high position to the PLC.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X225-100S the Right Cylinder?
Step down to the 32 mm MA cylinder (402.2 N at 0.5 MPa) if 628 N is generous for your load, or up to the 50 mm bore (981.3 N) when duty cycles run hot. Because a 225 mm rod carries more side load, guide the load externally or mount via FA flange to keep bending off the rod. Bear in mind the adjuster trims extend travel only and cannot hold position without air - plan a mechanical latch or pilot check where holding matters.
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 MACJ40X225-100S FAQ
The extend stroke is adjustable across 100 mm, cushioning is variable at both ends, speed is 30-800 mm/s and pressure 0.15-1.0 MPa (22-145 psi).
Yes - every MACJ ships with the piston magnet fitted, driving CMSG, DMSG or EMSG switches at no extra cost. The 225 mm stroke is well inside this bore's 500 mm standard limit, but keep the load guided so side force does not bend the 16 mm hard-chrome rod at full extension.
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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.
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