Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S
Among bore 20 MAJ variants this one carries the widest standard trim: a 75 mm window over a 175 mm stroke, set by an external stop screw. Double-acting with speed control from 30 to 800 mm/s, it swings 157 N of push force at 0.5 MPa and 219.8 N at 0.7 MPa, while fixed anti-impact bumper pads ease both stroke ends without any adjustment.
The body is a rolled stainless tube with aluminium covers and a hard-chrome Dia 8 rod - no tie rods, just a compact riveted package that handles humid food-area air. For sizing, halve the theoretical lift (about 16 kgf at 0.5 MPa) and you get a realistic 8 kg vertical lift with margin; plan continuous work around 94 N of that 157 N rating. The piston magnet is fitted as standard, so CMSG, DMSG and EMSG switches are drop-on accessories.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 | Fixed anti-impact bumper pads |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S Is Used
Interlock latch on a press guard
Slide a lock pin into a guard latch plate; the 75 mm window lets one cylinder serve guards of different depths.
Case stop at a palletizer infeed
Hold or release cartons feeding the palletizer; 157 N at 0.5 MPa stops a light case stream reliably, stroke set by the stop screw.
Sample pusher in a humidity chamber
Advance sample trays in condensing conditions; the stainless barrel and chromed rod shrug off moisture across the -20 to +70 C range.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S the Right Cylinder?
Between the 16 mm bore (100.5 N push at 0.5 MPa) and the 25 mm bore (245.3 N), bore 20's 157 N covers mid-duty pushing and lifting. The -75 adjuster is purely a mechanical extend stop: it does not hold load mid-stroke, and an unpowered piston still drifts, so rest the load on something solid.
Choose FA flange or LB foot mounting, add I or Y rod knuckles for the linkage, and keep side loads off the 175 mm rod with external guides. Port is 1/8"; pressure window 0.15-1.0 MPa (22-145 psi).
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X175-75S FAQ
Push 157 N and pull 131.9 N at 0.5 MPa; push 219.8 N and pull 184.7 N at 0.7 MPa; 32 kgf theoretical maximum at 1.0 MPa. The cylinder is double-acting, runs 30-800 mm/s on 40 um filtered air, and the extend stroke trims across a 75 mm adjustable window.
FA flange and LB foot carry the body; I and Y rod knuckles handle the linkage side. The adjustable-stroke version has no SDB or back-cover accessory code, so plan brackets around FA or LB. Port threads are PT (blank code), G or NPT, and the rod thread is M8x1.25.
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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.
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Most inquiries answered within 7-8 hours.
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