Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S
The AirTAC Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø0mm bore and 75mm stroke, PT/G air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ0 mm
- Stroke75 mm
- Port sizePT/G
- Acting typeDouble acting, adjustable stroke
- Rod thread
- 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 B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S
AirTAC builds the MAJ20X75-50S around a riveted stainless round barrel, a format that shrugs off mild corrosion far better than painted mini cylinders in damp workshops or food-area washdown. It is double-acting with a 50 mm adjustable window: an external stop screw trims the 75 mm extend stroke down on site without disassembling anything.
At 0.5 MPa the bore 20 piston delivers 157 N when pushing. Because practical sizing needs headroom, treat roughly 94 N as the force available for real work, which works out to about 8 kg of vertical lift once a 2:1 margin is applied. A magnet comes standard, so CMSG, DMSG or EMSG switches attach straight to the barrel without a special-order piston.
Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S Technical Specifications
| Model | Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø0 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | PT/G |
| Rod thread |
| 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 (Ø0mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 0 N | 0 N |
| 0.7 MPa | 0 N | 0 N |
| Max (@1.0 MPa) | 0 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 0 | Bore size in mm. |
| ×75 | 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 B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S Is Used
Carton tab folding
A 75 mm stroke with 50 mm of on-site trim suits folding glued flaps on small carton lines where flap thickness changes between SKUs.
Sample press in lab automation
Roughly 94 N of usable force at 0.5 MPa presses vial caps or microplate seals without crushing the sample.
Bench fixture clamping
Machinists use the stop screw to set a repeatable clamp height on drill-bench jigs holding aluminium brackets.
Is the Airtac B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S the Right Cylinder?
Bore 20 sits between the 16 mm size (100.5 N push at 0.5 MPa) and the 25 mm size (245.3 N push at 0.5 MPa); choose up or down from the 157 N this bore delivers. For flange or foot installations order FA or LB codes, and add I or Y rod knuckles where the load needs a swinging joint. The wide 50 mm window suits fixtures whose final approach position is only settled during commissioning.
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 B01-MAJ Special Purpose Cylinder B01-MAJ20X75-50S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa the figures are 219.8 N push and 184.7 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The bore 20 body takes 1/8" ports and carries an 8 mm rod with an M8x1.25 male thread. Order FA flange or LB foot codes, plus I or Y rod knuckles for pivoting loads. The stainless barrel and hard-chrome rod handle wet or outdoor shops without paint.
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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