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500T Insulation Boards Press press view 1
SMC Insulation Boards · Hydraulic Press Machine

500 Ton Four Column Hydraulic Press for SMC Insulation Boards

500T Rated Capacity
150 mm/s Slider Down Speed
10–18 mm/s Slider Pressing Speed
180 mm/s Slider Return Speed
500T Insulation Boards Press press view 1
500T Insulation Boards Press press view 2
500T Insulation Boards Press press view 3
500T Insulation Boards Press press view 4

01 — Press System

500 Ton Four Column Hydraulic Press Machine

This system produces high quality, electrical grade, and dimensionally stable SMC insulation boards with exceptional dielectric properties. It achieves fast, sustainable, and cost effective manufacturing using an integrated cooling system for rapid cycle times.

Use Case

The 500 ton four pillar press performs precision compression molding of glass fiber reinforced thermoset SMC composites into high insulation boards. It delivers high dielectric strength, flame retardancy, anti tracking electrical safety, and tight dimensional accuracy for heavy duty industrial applications.

  • Core Applications: Precision compression molding of electrical grade insulation boards, switchgear barriers, transformer insulation, and heavy duty industrial composite sheets requiring superior dielectric strength.
  • Material: Glass fiber reinforced unsaturated polyester or vinyl ester resin blended with calcium carbonate, alumina trihydrate, flame retardants, UV stabilizers, and anti tracking additives.
  • Products Processed: High quality electrical insulation boards, switchgear protection barriers, transformer insulation shields, and industrial grade composite sheets.
  • Why 500 Ton Hydraulic Press: Delivers exact pressure, temperature, and curing time control at closing speeds up to 200 mm per Sec, ensuring uniform thickness and high volume output exceeding 12 units per Hour.

02 — Technical Specifications

SM 500 HP – HYDRAULIC PRESS MACHINE COMPLETE TECHNICAL DATA

SM 500 HP – Hydraulic Press Machine delivers precise and efficient composite molding for SMC insulation boards with complete technical reliability. It ensures excellent electrical insulation, uniform curing, and consistent high-quality production.

Capacity & Structural Design

  • Rated Capacity: 500 Tons (≈ 4900 kN)
  • Press Type: Fourpillar hydraulic hot press
  • Frame: Heavy-duty welded steel, stress-relieved
  • Safety factor: ≥ 1.35
  • Elastic deflection: ≤ 0.06–0.09 mm

Hydraulic System

  • Cylinder: Doubleacting
  • Bore: 380–450 mm
  • Stroke: 600–900 mm
  • Working pressure: 28–32 MPa
  • Control: Servo / proportional system (recommended)

Compression Cycle

  1. Fast closing of mold
  2. Pre-compression (SMC sheet flow)
  3. Full compression (final shape formation)
  4. Thermoset curing stage (heat + pressure)
  5. Dwell time (resin cross-linking)
  6. Controlled decompression
  7. Mold opening

Heated Platen System

  • Heating type:
    • Thermal oil (preferred for uniformity)
    • Electric heaters (optional)
  • Temperature range: 130–180°C
  • Uniformity: ±2–3°C
  • Multi-zone controlled heating

Working Envelope

  • Platen size:
    • Standard: 1000 × 1000 mm
    • Optional: 1200 × 1200 mm
  • Daylight: 1000–1500 mm
  • Column diameter: 140–180 mm

Control System

  • PLC (Siemens / Mitsubishi / Delta)
  • HMI with programmable recipes
  • Real-time monitoring:
    • Pressure
    • Temperature
    • Time
  • Data logging (QA compliance)
  • Safety PLC + interlocks

SM 500 HP — Model Specifications

  • Nominal Force: 3150 KN
  • Maximum Hydraulic Pressure: 25 MPa
  • Max Opening Height of the Slider: 1500 mm
  • Max Stroke of the Slider: 900 mm
  • Effective Bed Size: 1400 × 1400 mm
  • Slider Down Speed: 150 mm/s
  • Slider Pressing Speed: 10–18 mm/s
  • Slider Return Speed: 180 mm/s
  • Ejector Cylinder Nominal Force: 300 KN
  • Stroke of the Ejection Cylinder: 300 mm
Production Case Study

SMC Insulation Boards Production Line

SMC CompoundMaterial
1000 x 2000 / 1250 x 2500 mmBoard Size
180 to 300 SecCycle time
140–165°CTemperature
High dielectric strength guaranteed
Flame retardant UL94 V0
Uniform thickness across boards
Rapid cycle cooling integrated
Consistent glass fiber distribution
High mechanical impact resistance
Cost effective high output

03 — Die / Mold System

Precision SMC Insulation Boards Die Mold Engineering

SM 500 HP – Hydraulic Press Machine delivers precise and efficient composite molding for SMC insulation boards with complete technical reliability. It ensures excellent electrical insulation, uniform curing, and consistent high-quality production.

Technical Specifications

Mold Type

  • Precision compression mold (flat plate type)
  • Thermoset heated mold

Mold Materials

  • Tool steel: H13 / P20 / CrMo alloy
  • Hardness: 48–55 HRC
  • Surface coating: Chrome plating / anti-stick

Mold Construction

  • Upper heated platen plate
  • Lower cavity plate (flat surface)
  • Precision guide pillars: Alignment accuracy ±0.02 mm
  • Ejection system: Hydraulic or manual release

Heating System

  • Internal thermal oil channels
  • Multi-zone heating
  • Uniform heat distribution

Venting System

  • Micro vent grooves
  • Degassing channels

Prevents:

  • Air pockets
  • Blisters
  • Surface defects

Surface Finish

SurfaceRequirement
Upper BoardSmooth / glossy
Lower BoardSmooth / matte
Electrical surfaceHigh insulation grade

Mold Life: 200,000 – 400,000 cycles

Case Study (Die Performance)

Precision SMC Insulation Boards Die Mold

P20 / H13 AlloyDie Steel
48 to 52 HRCHardness
Vacuum TemperingHeat Treatment
Mirror polish chrome finish
High wear abrasion resistance
Superior surface board finish
Extended mold service life
Optimal heat distribution profile
Zero flashing core precision

04 — Product Application

Where SMC Insulation Boards Are Used

SMC insulation boards are widely used in electrical and industrial applications for reliable insulation and protection. They are ideal for switchgear panels, distribution boards, and high-voltage equipment requiring durability and safety.

Industry Applications

Electrical & Power Sector

In the electrical & power sector, SMC insulation boards are used for switchgear panels, circuit breaker insulation, and transformer barriers. They provide excellent electrical insulation, heat resistance, and long-lasting performance in high-voltage applications.

Industrial Applications

In industrial applications, SMC insulation boards are used for electrical enclosures, machine insulation sheets, and structural composite panels. They provide strong insulation, durability, and reliable performance in demanding industrial environments.

Infrastructure

In infrastructure, SMC insulation boards are used in railway electrification systems, metro electrical panels, and smart grid networks. They provide reliable insulation, durability, and safety in modern power and transport infrastructure.

Renewable Energy

In renewable energy applications, SMC insulation boards are used in solar panel systems and wind turbine electrical components. They provide reliable electrical insulation, durability, and resistance to environmental exposure.

IndustryScenario
Power Generation Switchgear insulation panels
Electrical Utilities Transformer insulation Boards
Infrastructure Railway electrification
Industrial Electrical housing panels
Renewable Energy Solar and wind insulation

Finished Product Gallery

500T Insulation Boards Press finished product 1
500T Insulation Boards Press finished product 2
500T Insulation Boards Press finished product 3
500T Insulation Boards Press finished product 4
500T Insulation Boards Press finished product 5
500T Insulation Boards Press finished product 6

05 — Key Advantages

Why Choose the 500-Ton Sinter Hydraulic Press

It delivers precise pressure and uniform curing for high-quality SMC insulation boards. Designed for electrical applications, it ensures excellent insulation properties, durability, and consistent production performance.

01

Uniform Board thickness

Ensures even pressure distribution for consistent board thickness. It delivers reliable insulation performance and high-quality finish across all SMC boards.

02

High dielectric strength

Produces SMC insulation boards with excellent dielectric properties. It ensures safe and reliable performance in high-voltage electrical applications.

03

Flame retardant

Produces SMC insulation boards with excellent fire-resistant properties. It enhances safety by reducing flame spread and ensuring reliable performance in critical electrical applications.

04

Weather resistant

Produces SMC insulation boards with excellent resistance to moisture, UV exposure, and harsh environmental conditions. It ensures long-lasting durability and reliable outdoor performance.

05

Corrosion resistant

Produces SMC insulation boards with excellent resistance to rust, chemicals, and harsh environments. It ensures long-lasting durability and reliable performance in demanding applications.

06

High demand in electrical sector

Widely required in electrical and power industries due to their excellent insulating properties. They support reliable, safe, and long-lasting performance in high-voltage applications.

Get In Touch

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Production Line?

Our engineering team will size the press, die system, and automation to your target output, tile profile, and material spec. Quotations typically within 48 hours.

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