GrabCAD 模型信息
Valve Spool Assembly M20x1mm · 模型 202691
Advanced Technical Overview: The Valve Spool Assembly M20×1 mm is a critical precision component that is installed inside the cavity of hydraulic valves or directly in hydraulic blocks. This assembly represents the “beating heart” of any hydraulic control system, as it precisely controls the flow, direction, and speed of hydraulic oil. Precise Structural Composition 1- Inner Core (Spool) Engineering Design Shape: Multi-diameter stepped cylinder Stages: 4 different diameter stages Hydraulic Balance: Force-balanced design Control Channels: Laser-engraved Materials and Processing: Base Material: 20CrMnTi steel Heat Treatment: Surface hardening HRC 58-62 Finishing: Precision grinding + felt Ra ≤ 0.1 μm Coating: 0.02 mm hard chrome 2. Outer Body (Sleeve): Fixing Design: Material: 45# steel with heat treatment Internal thread: M20 × 1.0 with 6H precision Parallelism: ±0.005 mm/100 mm Straightness: < 0.003 mm Oil Passages: Number of Passages: 6 circular channels Passage Diameter: 4.5 ±0.01 mm Entry Angles: 45 degrees polished Inner Surface: Honing Ra ≤ 0.2 μm 3. Internal sealing system: Sealing rings: Number: 6 sealing rings Material: Polyurethane 95A Seal design: Multi-directional lip seal Pressure resistance: 0 leakage @ 350 bar Support rings: Number: 4 support rings Material: PTFE reinforced with bronze Function: Reduce friction and support the core Lifespan: > 5 million cycles 4. Return system: Micro springs: Number: 2 spiral springs Material: 65Mn steel wire Spring force: 20 ±2 N @ 25 mm Hardness: HRC 48-52 Mechanical guidance: Guidance axles: 2 steel axles Accuracy: ±0.005 mm Lubrication: Built-in permanent lubrication Resistance: Not affected by vibrations System response: Response time: < 10 ms Motion sensitivity: 0.01 mm Control Repeatability: ±0.02 mm Straightness: < 0.003 mm Sealing Efficiency: Static leakage rate: 0.05 cm³/min Dynamic leakage rate: 0.1 cm³/min Back pressure resistance: 100% @ 350 bar Sealing stability: Across all temperatures Installation Applications: 1. Inside hydraulic valves: Compatible valve types: Directional valves: 4/3, 4/2, 3/2 way Proportional valves: Precise flow control Valves: Precision control systems Logic valves: Digital/analog control 2. Inside hydraulic blocks: Cavity design: Cavity diameter: 20H7 (+0.021/0 mm) Cavity depth: 70 ±0.1 mm Surface roughness: Ra ≤ 0.4 μm Parallelism: 0.01 mm/100 mm Mounting connections: Fixed seal: O-ring 18×2.5 mm Mechanical fastening: M24×1.5 lock nut
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- Machine design、Piping、Tools
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- 数据更新
- 2026-10-24T21:02:42Z
