Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X130-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X130-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 130mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke130 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 MAJ20X130-50S
Adjustability is the selling point here: an external stop screw trims the 130 mm extend stroke anywhere inside a 50 mm window, so one stocked cylinder covers fixtures spaced from 80 mm to 130 mm. Output sits at 157 N push / 131.9 N pull on 0.5 MPa air (219.8 N / 184.7 N at 0.7 MPa), delivered by a compact round body whose stainless tube and aluminium covers are roll-crimped into one sealed unit.
Because the piston magnet comes as standard equipment, adding a DMSG switch for end-of-stroke confirmation costs no re-ordering. Fixed bumper pads take the sting out of stroke ends - they absorb impact, they do not offer the adjustable cushioning of the MACJ family. For sizing, treat about 94 N as your realistic working force at 0.5 MPa, which keeps close to 8 kg within reach for vertical lifts on a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X130-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X130-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 130 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 MAJ20X130-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×130 | Stroke length in mm. |
| -50 | 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 MAJ20X130-50S Is Used
Tray cassette handling in a washer rack
Sliding sterile tray cassettes in and out of a hospital washer rack, where the 50 mm window absorbs rack-to-rack spacing differences.
Case-turning kicker on a carton line
A kicker arm that rotates cartons 90 degrees between conveyors; a DMSG switch confirms each cycle on the standard magnet.
Toggle clamp actuation on a weld jig
Second-stage clamp on a small weld fixture where 157 N of push holds a toggle lever closed and the stainless barrel resists weld-spatter cleanup.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X130-50S the Right Cylinder?
Compare both neighbours before committing: the 16 mm MAJ gives 100.5 N at 0.5 MPa and suits tighter envelopes, while the 25 mm bore raises push to 245.3 N for stiffer work. At 130 mm of stroke on an 8 mm rod, external guiding is wise if any side load exists. LB foot or FA flange mounting plus I / Y knuckles fit most frames. Remember the stop screw shortens the extend stroke only - it holds position against air pressure, not against a hanging load once air is lost.
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 MAJ20X130-50S FAQ
At 0.5 MPa expect 157 N push and 131.9 N pull; at 0.7 MPa, 219.8 N push and 184.7 N pull. The theoretical maximum at 1.0 MPa is 32.0 kgf. Supply 0.15-1.0 MPa (22-145 psi) of 40 um filtered air and keep travel between 30-800 mm/s.
Its barrel is stainless steel and the 8 mm rod carries a 20 um hard-chrome plate, a pairing that handles condensation and light washdown far better than painted minis. Air ports are 1/8" and the rod thread is M8x1.25.
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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