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Hunan Chengzhai Machinery Equipment Co., Ltd.

  • China,Changsha ,Hunan
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China Sand-vik DD / DL safety proportional valve55194637
China Sand-vik DD / DL safety proportional valve55194637

  1. China Sand-vik DD / DL safety proportional valve55194637

Sand-vik DD / DL safety proportional valve55194637

  1. MOQ: 1
  2. Price: 7370
  3. Get Latest Price
Payment Terms T/T
Packaging Details Original packaging
Regular Length 6-12m or as customized
Charging Time 12 hours
Axle Diameter 60
Fan Model K40-4-NO8#Fan
Material Steel
Roadway Slope 10-30
Size 1150*850*520mm
Length Mm 1650
Loading Width 2500-2700mm
Treatment Capacity 60-80 t/h
Air Compressor 2 kw
Rated Capacity 4.5Ah
Noise Level 85-110 dB
Illumination >3500Lx or >4500Lux (start of lighting)
Application mining industry
Delivery Time 15days
Supply Ability 9999
Place of Origin CHINA
Brand Name Sand-vik
Model Number 55194637

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Packaging Details Original packaging
Regular Length 6-12m or as customized Charging Time 12 hours
Axle Diameter 60 Fan Model K40-4-NO8#Fan
Material Steel Roadway Slope 10-30
Size 1150*850*520mm Length Mm 1650
Loading Width 2500-2700mm Treatment Capacity 60-80 t/h
Air Compressor 2 kw Rated Capacity 4.5Ah
Noise Level 85-110 dB Illumination >3500Lx or >4500Lux (start of lighting)
Application mining industry Delivery Time 15days
Supply Ability 9999 Place of Origin CHINA
Brand Name Sand-vik Model Number 55194637

Sand-vik 55194637 Safety Proportional Valve


Part No. 55194637 is an original electro-hydraulic proportional relief valve for Sand-vik DD/DL series underground drill rigs. It realizes stepless proportional pressure regulation and overpressure protection for hydraulic systems. This cartridge valve comes in black finish.

1. Basic Information


  • Part Number: 55194637 (Full code: 551 94637)
  • Brand: Sand-vik
  • Type: Proportional pressure relief valve with safety unloading function
  • Applicable Models:
    • DD Series: DD2100, DD2710, DD3110 and other underground development drill rigs
    • DL Series: DL2100, DL2710 and other longhole drill rigs
    • Matched equipment: Hydraulic circuits of RDX5 hydraulic rock drills


2. Core Functions


  • Proportional pressure regulation: Receives 0–10V DC or 4–20mA electrical signals to adjust system pressure continuously and linearly.
  • Safety relief: Releases pressure proportionally when overloaded, protecting hydraulic pumps, motors, rock drills and other precision components.
  • Load sensing: Automatically adjusts pressure according to working load to save energy and reduce heat generation.

3. Key Specifications


  • Working Pressure: 0–350 bar (Max regulating pressure: 350 bar)
  • Flow Range: 2–80 L/min
  • Input Signal: 0–10V DC or 4–20mA
  • Coil Voltage: 24V DC (standard for drill rigs)
  • Material: High-strength carbon steel valve body, hardened valve spool, FKM rubber seals
  • Operating Temperature: -30℃ ~ +120℃
  • Installation: Cartridge type, fits standard valve cavities

4. Appearance & Structure


  • Cylindrical black cartridge valve body with a proportional solenoid mounted on the top.
  • Integrated assembly consisting of valve spool, spring and proportional solenoid, equipped with O-ring seals.
  • Original marking: Part number 55194637, Sand-vik logo, voltage and pressure parameters.

5. Replacement & Compatibility


  • Genuine replacement: 55194637 (single standard model, no upgraded variants)
  • Interchangeability: Not compatible with Epiroc 606001108 or other similar parts due to different brands, port sizes and control logic.
  • Installation position: Main hydraulic valve block, for pressure control circuit of rock drills.

6. Common Faults & Maintenance


  • No pressure output: Burnt coil, stuck valve spool or signal loss.
  • Unstable pressure: Contaminated hydraulic oil, worn seals or faulty proportional amplifier.
  • Maintenance cycle: Inspect every 500 working hours. Replace hydraulic oil, clean filter elements and regularly check coil insulation.

Company Details

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 and 

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 from Quality China Factory
  • Business Type:

    Trading Company,Seller,Exporter,Importer,Distributor/Wholesaler,Manufacturer,Agent

  • Year Established:

    2023

  • Total Annual:

    CNY 20M-CNY 50M

  • Employee Number:

    10~49

  • Ecer Certification:

    Verified Supplier

Chengzai Machinery mainly operates products suitable for imported brands of road machinery, mining equipment, construction machinery, generator sets, ship power systems, etc.: drilling rig spare parts, air compressor spare parts, tunneling machine spare parts, excavator-loader spare parts, engine sp... Chengzai Machinery mainly operates products suitable for imported brands of road machinery, mining equipment, construction machinery, generator sets, ship power systems, etc.: drilling rig spare parts, air compressor spare parts, tunneling machine spare parts, excavator-loader spare parts, engine sp...

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Get in touch with us

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  • Hunan Chengzhai Machinery Equipment Co., Ltd.
  • Changsha Avenue, Yuhua District, Changsha, Hunan, China (Changsha) ASEAN Economic and Trade Cooperation Headquarters Base 1209
  • https://www.czjx-parts.com/

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