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Engineering Specification Guide

Industrial Hydraulic Oils (L-HM, L-HV, Ashless & Water-Glycol) in 208L Steel Drums

Technical guide and factory supplier of industrial hydraulic oils (ISO VG 32, 46, 68, 100) meeting DIN 51524 Part 2/3 (HLP/HVLP) and ISO 11158 HM. Supplied in 208L steel drums and IBC totes from Quanzhou, China.

Comprehensive physical parameters, DIN 51524 compliance specifications, and machine compatibility matrices for injection molding, CNC precision presses, excavators, and hot die-casting equipment.

Jump to Parameters Matrix ↓ Injection Molding Guide 20GP Drum Loading Specs
Authentic Production Batch

Verified 208L Steel Drum Staging & Container Loading

Photographic evidence from our Quanzhou plant floor and export container stuffing bay. Every 208L steel drum of FOSS L-HM 46 and L-HM 68 is filled via automated flow-meter blending, sealed with waterproof tamper-evident bungs, and labeled with full batch test certificates.

✓ DIN 51524 Part 2 (HLP) compliance verified in in-house QC laboratory
✓ 80 Drums / 20GP Container payload (16,640L) palletized with dunnage boards
✓ GB 11118.1-2011 & ISO VG 68 silk-screened stenciling on weather lids
FOSS LUBRICATION 208L hydraulic oil steel drums in factory FOSS Factory Stock
L-HM 46 hydraulic oil drums loaded in container L-HM 46 Container Staging
208L steel drums staged at blending kettle discharge lines Drum Filling Staging
L-HM 68 hydraulic oil drum tops with GB 11118.1-2011 standard stencil L-HM 68 Stenciled Lid
Laboratory Typical Analysis

Standard Physical & Chemical Parameter Matrix

Every batch blended at our Quanzhou plant is certified against international testing standards before filling into UN 208L steel drums.

Product Grade ISO VG 40°C Viscosity (mm²/s) 100°C Viscosity (mm²/s) Viscosity Index (VI) Flash Point (COC, °C) Pour Point (°C) Demulsibility (@ 54°C) FZG Stage Primary Standards
FOSS L-HM 32 ISO 32 32.1 5.4 104 224 -18 ≤ 10 min Pass 11 DIN 51524-2 (HLP), Denison HF-0
FOSS L-HM 46
Top Export SKU		 ISO 46 46.2 6.8 102 232 -15 ≤ 12 min Pass 11 DIN 51524-2, Vickers M-2950-S, P-70
FOSS L-HM 68 ISO 68 68.5 8.7 100 240 -15 ≤ 15 min Pass 11 DIN 51524-2 (HLP), ISO 11158 HM
FOSS L-HV 46
Wide-Temp High-VI		 ISO 46 (HV) 45.8 8.2 155 228 -42 ≤ 15 min Pass 11 DIN 51524-3 (HVLP), ISO 11158 HV
FOSS L-HM 46 (Ashless)
Zinc-Free Formula		 ISO 46 46.0 6.7 101 230 -15 ≤ 10 min Pass 11 Denison HF-0, Cincinnati P-69
FOSS 4631 Water-Glycol
Anti-Fire / HFC		 HFC 46 46.0 9.5 180 None -36 N/A (Solution) Pass 10 ISO 12922 HFC, 7th Lux Report
Primary Equipment Solution

Hydraulic Fluids for Plastic Injection Molding Machines

Designed for Haitian (海天), Chen Hsong (震雄), Yizumi (伊之密), and Engel injection presses with high-pressure variable displacement pumps and servo proportional valves.

Why Injection Presses Require FOSS L-HM 46/68

Injection molding hydraulic systems operate under cyclic clamping pressures exceeding 140–210 bar (2,000–3,000 PSI) with continuous reservoir temperatures between 45°C and 60°C. Lower-grade hydraulic oils degrade rapidly, forming microscopic lacquer, sludge, and varnish that foul servo proportional valves, causing clamping hesitation and shot-to-shot weight inconsistency.

  • Rapid Water Demulsibility: Water separation in under 12 minutes prevents oil milky emulsification caused by cooler condensation or heat exchanger leaks.
  • Thermal-Oxidative Stability: Virgin Group II hydrotreated paraffinic base oil resists high-temperature oxidation, extending typical drain intervals to 4,000–6,000 operating hours.
  • Seal Compatibility: Fully compatible with NBR (Nitrile), FKM (Viton), and Polyurethane piston seals, preventing swelling, hardening, or catastrophic oil line blowouts.
  • Anti-Foam & Air Release: Low foaming (≤ 10/0 ml at 24°C) prevents pump cavitation, noise, and erratic pressure fluctuations.
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Machine Brand Recommended Viscosity Matrix

Haitian Mars / Jupiter Series FOSS L-HM 46
Chen Hsong Supermaster (SM Series) FOSS L-HM 46 / 68
Yizumi A5 / UN Series FOSS L-HM 46
Heavy Extruders & Blow Molding (>600T) FOSS L-HM 68
High Temperature Foundry / Die-Casting FOSS 4631 HFC
* Note: Always verify against equipment nameplate or manufacturer technical maintenance manual prior to initial charge.
Equivalence & Cross-Reference

Global Industry Equivalent Cross-Reference

Engineers and plant procurement managers can cross-reference FOSS formulations against familiar multinational brands for low-risk transition.

FOSS Formulation Grade DIN / ISO Standard Mobil Cross-Reference Shell Cross-Reference Castrol Cross-Reference GreatWall Cross-Reference
FOSS L-HM 32 DIN 51524-2 (HLP) Mobil DTE 24 Tellus S2 M 32 Hyspin AWS 32 卓力 L-HM 32
FOSS L-HM 46 DIN 51524-2 (HLP) Mobil DTE 25 Tellus S2 M 46 Hyspin AWS 46 卓力 L-HM 46
FOSS L-HM 68 DIN 51524-2 (HLP) Mobil DTE 26 Tellus S2 M 68 Hyspin AWS 68 卓力 L-HM 68
FOSS L-HV 46 DIN 51524-3 (HVLP) Mobil DTE 10 Excel 46 Tellus S2 V 46 Hyspin AWH-M 46 卓力 L-HV 46
FOSS 4631 HFC ISO 12922 HFC Mobil Pyrotec HFC 46 Irsea HFC 46 Anvol SWX 46 长城 4631 水-乙二醇

* Disclaimer: All trademarked brand names belong to their respective corporations. Mention here is solely for technical viscosity and performance cross-referencing purposes.

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