Shunhao Factory specializes in melamine and urea machines & moulds—and we know downtime hurts your production. Here’s the fix: ~70% of hydraulic press issues come from wrong hydraulic oil use. Keep your machines running with simple oil tips.

Must-Have Hydraulic Oil Traits (For Shunhao Machines)

• Great viscosity (flows in low temps/high pressure)
• Long stability (no physical/chemical changes)
• Oxidation resistance (stops rust/corrosion)
• Fast impurity separation (defoams, resists emulsification)
• Strong lubrication
• Works with all seals
• Low volatility + high fire safety
• Non-toxic

Quick Maintenance Checks

• Viscosity change: ≤ ±10-15%
• Total acidity: ≤ 0.4 mg KOH/g
• Moisture: ≤ 0.1 Vol%
• Contamination: ≤ 5.0 Mg/100ml
• Temperature rules:
• Start-up: 10-15℃ | Warm-up: 15-30℃
• Normal run: 30-70℃ | Danger: Over 80℃

Right Choice: SHELL-46 Oil

Our melamine/urea machines use SHELL-46 High-Performance Hydraulic Oil (hydrotreated paraffinic base oil, super reliable). Refueling:

Use rear oil inlet

Fill ≤80% of tank (match machine size)

Shunhao Factory cares about your efficiency. Pick the right oil, follow these tips, and keep production smooth!