Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm bore and 175mm 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
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, 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 MACJ40X175-30S
When stop positions get revisited mid-shift, the 30 mm window earns its keep: the extend stroke can be shortened from 175 mm down to 145 mm and back again with a screwdriver. The cylinder is double-acting with a variable air cushion at each end, and at 0.5 MPa it carries 628 N on extend against 528 N on retract, with a theoretical 128 kgf ceiling at 1.0 MPa.
Underneath sits the MA mini construction: a stainless round tube riveted into the aluminium covers for a compact, sealed body, with a 16 mm carbon-steel rod carrying hard chrome that shrugs off splash and humidity where painted minis corrode. A magnet is fitted to the piston as standard equipment, letting CMSG, DMSG and EMSG switches snap onto the barrel without a special-order piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MACJ40X175-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -30 | 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 MACJ40X175-30S Is Used
Palletizer layer pusher
Pushes a layer of cartons square on a palletizing plate; 628 N at 0.5 MPa and a 30 mm setup window let one cylinder serve several pallet patterns.
Crimping pre-clamp
Holds a connector body before the main crimp stroke - about 377 N of dependable force at 0.5 MPa, with the stop trimmed for different part heights.
Glue-bead follower
Tracks filler-head height on a dispensing jig; the cushion ends travel gently at up to 800 mm/s so wet adhesive is not shaken off the bead.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-30S the Right Cylinder?
Between bores: the 32 mm MACJ gives 402 N at 0.5 MPa and the 50 mm gives 981 N, so this 40 mm bore's 628 N sits in the middle for medium clamps and gates. Work to about 377 N of that push (roughly 60 percent) and you cover friction, pressure sag and seal aging; vertically that same margin supports around 32 kg of lift. The 175 mm stroke is standard for bore 40 (up to 500 mm), but at this length keep side loads low and guide the load externally if the rod sees lateral force. FA flange and LB foot plates plus I / Y knuckles cover most fixings.
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 MACJ40X175-30S FAQ
Extend force is 628 N and retract 528 N at 0.5 MPa, rising to 880 N and 739 N at 0.7 MPa; maximum theoretical force is 128 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, air port 1/8", and proof pressure 1.5 MPa (215 psi).
The riveted stainless tube resists washdown, condensation and mild corrosion that quickly ruin painted-steel or bare-aluminium minis, making it a solid pick for food, outdoor and damp assembly areas. Paired with the hard-chrome 16 mm rod and the built-in magnet for CMSG / DMSG / ESG switches - sorry, EMSG switches - the package stays serviceable for years in harsh spots.
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.
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