Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 80–100mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke100 mm
- Adjustable80–100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S
The AirTAC MBLCJ20X100-20S is a compact double-acting mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. The 20 mm adjustment code lets you trim the rear travel, creating an 80 to 100 mm usable positioning window. Delivering 157 N of push force at 0.5 MPa, this 100 mm stroke unit suits precise intermediate positioning tasks. Its riveted aluminum barrel keeps weight down in tight machine cells.
Unlike the standard MBLJ bumper design, this model uses screw-tunable end-of-stroke deceleration to absorb kinetic energy, protecting the end covers during faster cycling. The integrated magnet (-S) enables position detection via CMSG reed or DMSG and EMSG solid-state switches. Note that the rear stopper sets the travel end and the cushion decelerates the load, but neither component mechanically locks the rod in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 80–100 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S Is Used
PCB Depaneling Saw Feed
Uses the 80-100 mm adjustable stroke window to precisely set the cutting depth of a circular saw on a PCB depaneling router, while the air cushion prevents snap-back at the end of the cut.
Micro-Dispenser Probe Dive
Controls the downward dive of a fluid dispensing needle onto small electronic substrates, relying on the 157 N push force and tunable deceleration to avoid splashing viscous adhesives.
Lightweight Parts Ejector
Pushes small plastic molded parts out of a machining fixture, using the integrated magnet and an EMSG sensor to confirm ejection completion before the next cycle begins.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S the Right Cylinder?
Choose this 20 mm bore when you need 157 N of thrust at 0.5 MPa (220 N at 0.7 MPa) with precise end-position tuning. If your application requires less force, the smaller 12 mm bore variants offer lighter output; if you need to step up, the 25 mm bore provides 245 N of push force. The adjustable air cushion is ideal for varying load masses, whereas the MBLJ relies on a fixed rubber bumper, and the MBLC offers fixed stroke lengths. For a direct replacement, match the 20 mm bore, 100 mm stroke, 20 mm adjust code, G1/8 port, PT thread, Basic mounting, and the -S magnet. Mounting is limited to Basic, FA, or LB; no SDB or back-cover options exist. With a 100 mm stroke on an Ø8 mm rod, use an external guide to prevent rod bending under lateral loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The rear adjuster physically stops the piston early, giving you an 80 to 100 mm usable travel window, but it does not lock the load in place. The adjustable air cushion is a separate screw that tunes the end-of-stroke deceleration rate to protect the end covers from impact. Neither feature holds position without continuous air pressure.
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.
Related AirTAC Adjustable-Stroke Cylinders
Request a Quote for Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X100-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.