ROEMHELD B1.2811 Series Compact Double-acting Tie-rod Hydraulic Cylinder for Space-restricted Layouts
Example Models:
- 12830025 B1.2811-25/25
- 12830050 B1.2811-25/50
- 12840025 B1.2811-32/25
- 12840050 B1.2811-32/50
- 12850025 B1.2811-40/25
- 12850050 B1.2811-40/50
- 12860025 B1.2811-50/25
- 12870050 B1.2811-63/50
- 12880025 B1.2811-80/25
- 12880050 B1.2811-80/50
Product Introduction of ROEMHELD B1.2811 Hydraulic Cylinder
Product Overview
A: Depends on the style of tie-rod. We would like to cast and forge once the quantity above 100 pcs.
A: Well, it depends on the quantity and style of hydrualic cylinders, at least 60 days if we make casting and forging, at least 35 days by maching.
A: Sure, we are the manufacutuer and trading of hydraulic cylinder.
A: Double-Acting-have a port at each end, supplied with hydraulic fluid for both the retraction and extension. Single-Acting-hydraulic fluid enters through
a port at one end of the cylinder, which extends the rod by means of area difference. An external force or gravity returns the piston rod.
A: Sure. Show us the drawing, we will quote for you soonest.
A: Yes, we make and supply a wide rang of hydrualic cylinders as a proffetional manufacture, there are only some kinds of them show on the website. Freely contact us to get more information.
- Operation Type: Double-acting hydraulic cylinder (hydraulic extend + hydraulic retract)
- Max Rated Operating Pressure: 200 bar
- Max Permitted Piston Speed: 0.5 m/s
- Standard Piston Bore Sizes: Ø25 / Ø32 / Ø40 / Ø50 / Ø63 mm
- Standard Stroke Range: 25 / 50 / 80 / 100 mm
- Mounting Standard: DIN ISO 6020, short compact construction
- Stroke Cushion: No built-in stroke end cushioning
- Rod End: External male metric thread
- Standard Sealing: NBR (-20 °C ~ +80 °C, mineral hydraulic oil)
- Optional Sealing: FKM/Viton high-temperature chemical resistant seals (-20 °C ~ +120 °C)
Ultra-Short Compact Construction
Shorter body compared to standard DIN ISO 6020 cylinders, ideal for narrow installation space inside jigs and clamping fixtures. Direct centring via cylinder head enables precise positioning on fixture base plates.
Low-Leakage High-Durability Sealing
Glydring low-wear friction seals, double rod sealing structure ensures minimal leakage. Guide rings on piston and rod reduce metal contact friction for long high-cycle service life.
Hardened & Corrosion Resistant Piston Rod
Induction-hardened and hard-chromium-plated rod surface resists abrasion and coolant corrosion. Effective wiper prevents debris entering the cylinder interior.
Standardized Mounting Interface
DIN ISO 6020 connection dimensions simplify fixture design and interchangeability. Four internal threads on both front and rear housing for flexible mounting options.
Simple Circuit Matching
Double-acting bidirectional hydraulic drive, suitable for general clamping, pushing and pulling motions in automated tooling.
