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Cushion Lock
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Model

YCJDHNAR

Functional Setting Range
  • Standard Options
  • A
    1000 - 4000 psi w/4 psi Check (70 - 280 bar w/ 0,3 bar Check), 3000 psi (210 bar) Standard Setting
  • B
    400 - 1500 psi w/4 psi Check (28 - 105 bar w/ 0,3 bar Check), 1000 psi (70 bar) Standard Setting
  • H
    1000 - 4000 psi w/25 psi Check (70 - 280 bar w/ 1,7 bar Check), 3000 psi (210 bar) Standard Setting
  • I
    400 - 1500 psi w/25 psi Check (28 - 105 bar w/ 1,7 bar Check), 1000 psi (70 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Pilot Ratio (4th Letter) of Primary Cartridge
  • Standard Options
  • A
    3:1 (with CBIA primary cartridge, 3:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBIG primary cartridge, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • H
    10:1 (with CBIH primary cartridge, 10:1 pilot ratio, standard capacity counterbalance valve)
Port and Material Designation
  • Standard Options
  • R
    Ports V1 & V2 — 1 1/2 in. Code 61; Ports C1 & C2 — 1 1/2 in. Code 61; Port T — 1 1/2 in. Code 61; Aluminum
  • R/S
    Ports V1 & V2 — 1 1/2 in. Code 61; Ports C1 & C2 — 1 1/2 in. Code 61; Port T — 1 1/2 in. Code 61; Iron
Model: YCJD

Cushion lock assembly

Capacity:

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Model

YCJDHNAR

Functional Setting Range
  • Standard Options
  • A
    1000 - 4000 psi w/4 psi Check (70 - 280 bar w/ 0,3 bar Check), 3000 psi (210 bar) Standard Setting
  • B
    400 - 1500 psi w/4 psi Check (28 - 105 bar w/ 0,3 bar Check), 1000 psi (70 bar) Standard Setting
  • H
    1000 - 4000 psi w/25 psi Check (70 - 280 bar w/ 1,7 bar Check), 3000 psi (210 bar) Standard Setting
  • I
    400 - 1500 psi w/25 psi Check (28 - 105 bar w/ 1,7 bar Check), 1000 psi (70 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Pilot Ratio (4th Letter) of Primary Cartridge
  • Standard Options
  • A
    3:1 (with CBIA primary cartridge, 3:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBIG primary cartridge, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • H
    10:1 (with CBIH primary cartridge, 10:1 pilot ratio, standard capacity counterbalance valve)
Port and Material Designation
  • Standard Options
  • R
    Ports V1 & V2 — 1 1/2 in. Code 61; Ports C1 & C2 — 1 1/2 in. Code 61; Port T — 1 1/2 in. Code 61; Aluminum
  • R/S
    Ports V1 & V2 — 1 1/2 in. Code 61; Ports C1 & C2 — 1 1/2 in. Code 61; Port T — 1 1/2 in. Code 61; Iron
See CAD Files tab below to request images.
Function
Function image

Technical specifications

  • Modifiers
    Ports
    • R, R/S
      Ports V1 & V2: 1 1/2 in. Code 61; Ports C1 & C2: 1 1/2 in. Code 61; Port T: 1 1/2 in. Code 61;
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    This valve assembly provides overrunning load-control, load-port relief protection, supplies make-up oil, and flushes hot dirty oil out of the actuator. All oil coming out of the actuator returns to tank through port T.

    • The counterbalance valves should be set at 1.3 times the maximum load induced pressure.
    • The term cushion in the name Cushion Lock is a misnomer. Because the counterbalance valves play a dual role as load controls and work port reliefs they must be set too high to provide any real cushion. Deceleration can only be achieved by ramping down the input flow.
    • This assembly is ideal for applications with long lines to the actuators. Mounting the assembly close to an actuator ensures that cool, clean oil will be supplied to the actuator and that the hot, dirty oil will go out the T port to the tank
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    • Body Type
      Line mount
    • Capacity
      120 gpm
    • Mounting Hole Thread
      .500-13 UNC - 2B in.
    • Mounting Hole Depth
      .75 in.
    • Mounting Hole Quantity
      4

    Model CAD Files

    Files not yet avialable. Click below to request them.

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    • Why doesn't Sun anodize their aluminum bodies?
    • How big is a drop of hydraulic oil?  
    • Direct acting or pilot operated - what do I use?
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    • Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
    • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
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