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RAF Gypsum Core Panels Press 1
RAF Gypsum Core Panels · Hydraulic Press Machine

1250 Ton Four Column Hydraulic Press for Raised Access Floor (RAF) Gypsum Core Panels

1250T Rated Capacity
180 mm/s Slider Down Speed
6–15 mm/s Slider Pressing Speed
200 mm/s Slider Return Speed
RAF Gypsum Core Panels Press 1
RAF Gypsum Core Panels Press 4
RAF Gypsum Core Panels Press 2
RAF Gypsum Core Panels Press 3

01 — Press System

1250 Ton Four Column Hydraulic Press Machine

The 1250-ton four-pillar hydraulic press from Sinter Hydraulics India is a core manufacturing system for raised access floor gypsum core panels, delivering high-strength structural floor panels, excellent dimensional accuracy, reliable composite bonding, and scalable production for global infrastructure markets. Built with a heavy pre-stressed four-column frame and multi-stage pressure control, it compacts high-density gypsum formulations to ensure optimal load-bearing capacity and panel flatness.

Use Case

The 1250-ton four-pillar hydraulic press from Sinter Hydraulics India is designed for high-pressure molding of gypsum core panels used in raised access flooring systems (RAF). Processing high-strength alpha gypsum, reinforcement fibers, and performance fillers, it compacts slurries into high-density core slabs, ensuring absolute thickness control and exceptional bonding with steel or aluminum outer skins.

Core Applications

  • High-pressure compaction molding and high-density core forming of calcium sulfate and gypsum panels for raised access flooring
  • Production of heavy-duty encapsulation cores bonded with galvanized steel or aluminum foil sheets for commercial access floors
  • Precision manufacturing of fire-rated, acoustic, and high-load structural floor panels for data centers and server rooms

Material

  • High-strength alpha hemihydrate gypsum, desulfurization gypsum powder, and fine cementitious mineral fillers
  • Chopped E-glass fibers, refined wood cellulose pulp fibers, and synthetic reinforcing mesh materials
  • Hydrophobic waterproofing agents, setting retarders, defoamers, and inorganic fire-resistant additives

Typical Products Processed

  • 600x600 mm encapsulated raised access floor gypsum core panels with steel or foil bottom backing
  • Heavy-duty calcium sulfate raised floor core tiles engineered for high concentrated and rolling load capacities
  • Bare, corner-lock, and tongue-and-groove raised flooring core boards for modular cleanrooms and office spaces

Key Functions

  • Application of massive 1250-ton hydraulic compression across core molds to eliminate air pockets and densify the gypsum slurry
  • Precision multi-stage pressure ramping and dwell control to ensure seamless lamination between gypsum core and metal skins
  • Precise thickness calibration across the entire panel area to guarantee perfectly flush floor leveling during installation
  • Controlled hydraulic and pneumatic ejector pin actuation ensuring gentle, non-destructive ejection of cured green panels

Why 1250 Ton Hydraulic Press?

  • Delivers 1250 tons of uniform, high-density compaction force required to achieve high compressive strength in dense gypsum core formulations
  • Heavy four-pillar guide structure maintains absolute platen parallelism under full tonnage, preventing panel warping, thickness variation, and structural defects

02 — Technical Specifications

SM 1250 HP – HYDRAULIC PRESS MACHINE COMPLETE TECHNICAL DATA

The SM 1250 HP heavy-duty hydraulic press delivers high-tonnage compaction force and rigid parallel platen guidance engineered specifically for raised access floor gypsum core panels. Its pre-stressed four-column structure and multi-stage pressure ramping eliminate air pockets, consolidate dense gypsum formulations, and ensure absolute board flatness.

Capacity

  • Maximum continuous compression molding force capacity of 12500 kN
  • Dedicated hydraulic bottom ejector force capacity of 1500 kN

Structural Design

  • Heavy stress relieved four column guide structure engineered for precise parallel compression molding
  • FEA stress relieved heavy steel plate welded bolster and upper moving platen assembly

Frame Type

  • Precision aligned solid induction hardened pillar frame guide structure
  • Stress relieved heavy welded steel plate bolster and upper moving slide assembly

Hydraulic System

  • High output variable displacement axial piston pump fluid power assembly
  • Multi stage high capacity offline oil filtration loop with integrated oil coolers

Main Ram Stroke

  • Maximum vertical slide compression travel distance capability of 900 mm
  • Electronic stroke length limitation positioning resolution accurate within 0.005 mm

Working Hydraulic Pressure

  • Maximum continuous operating main hydraulic system fluid pressure of 250 bar
  • Peak shock safety valve pressure relief calibration threshold limit of 280 bar

Daylight Gap

  • Maximum open vertical daylight window working clearance of 1400 mm
  • Minimum closed shut die height tool workspace space of 350 mm

Approach Speed

  • Accelerated downward advance slide rapid travel speed of 230 mm/Sec
  • Controlled gypsum core mold engagement deceleration velocity of 10 mm/Sec

Pressing / Drawing Speed

  • Precision gypsum core panel compaction molding speed of 3 to 10 mm/Sec
  • Maximum resistance continuous molding compression velocity of 12 mm/Sec

Return Speed

  • Smooth upward ram extraction retraction travel speed of 190 mm/Sec
  • Fast automated hydraulic decompression pre return system cycle timing

Bed / Platen Size Platen

  • Total clear bolster bed width left to right of 3000 mm
  • Total clear bolster bed depth front to back of 1600 mm

Columns

  • High tensile forged alloy steel pillar diameter of 300 mm
  • Heavy duty wear resistant bronze guide bushings with automatic grease lubrication

Working Envelope

  • Total horizontal internal clear workspace area of 3000 by 1600 mm
  • Maximum permissible upper compression mold assembly mass weight of 12000 kg

Control System

  • Industrial programmable logic controller linked with a graphical touchscreen station
  • Dual redundant non contact linear transducer position tracking systems accurate within 0.002 mm

Main Motor Power

  • High efficiency primary hydraulic pump electric drive motor power of 90 kW
  • Dedicated auxiliary cooling and continuous oil filtration motor power of 9 kW

Valves & Hydraulics

  • High dynamic response proportional pressure and flow control cartridge valve manifold block
  • Fast acting overhead gravity pre fill oil valve unit assembly

Automation

  • Digital interface connection ports for synchronized automatic mold tray transfer systems
  • Integrated multi point hydraulic pin ejectors and pneumatic mold release air blowers

Safety Features

  • Dual channel infrared light curtain barriers guarding operator workspace zones
  • Automated heavy duty dual fail safe mechanical anti drop ram safety locking blocks

SM 1250 HP — Model Specifications

  • Nominal Force: 16000 KN
  • Maximum Hydraulic Pressure: 25 MPa
  • Max Opening Height of the Slider: 1500 mm
  • Max Stroke of the Slider: 900 mm
  • Effective Bed Size: 1600 × 1600 mm
  • Slider Down Speed: 180 mm/s
  • Slider Pressing Speed: 6–15 mm/s
  • Slider Return Speed: 200 mm/s
  • Ejector Cylinder Nominal Force: 600 KN
  • Stroke of the Ejection Cylinder: 300 mm
Production Case Study

Raised Access Floor (RAF) Gypsum Core Panels Production Line

600 x 600 mmBoard Size
15,000 to 25,000 cPsGypsum Slurry Viscosity
40 to 60 SecCycle time
60 to 90 panelsOutput/Hour
Core density completely stabilized
Exact panel thickness maintained
Surface micro-cracking eliminated
Edge panel warping prevented
Slurry de-airing speed optimized
Scrap reject rates minimized
Extended mold service life

03 — Die / Mold System

Precision Raised Access Floor (RAF) Gypsum Core Panels Die Mold Engineering

This precision raised access floor gypsum core panel compression mold features CNC machined alloy steel cavity inserts, high-capacity vacuum de-airing channels, and integrated ejection pin assemblies. Engineered for 1250-ton hydraulic pressing, it ensures high-density gypsum compaction, perfect dimensional parallelism, and seamless metal skin bonding.

Use Case

The raised access floor gypsum core mold integrates into 1250-ton four-column hydraulic presses to compact high-strength alpha gypsum, fiber, and mineral slurry formulations into dense structural panels. It purges entrapped air, maintains exact panel thickness, and produces flat, high-load floor core tiles for commercial and data center access floors.

Technical Specifications (Tooling)

Die Type

  • Heavy duty precision compression compaction mold assembly for raised access floor gypsum core panels
  • Matched upper compression punch plate and lower multi cavity steel die box with hydraulic pin ejection

Die Materials

  • Premium grade P20 tool steel mold plates offering exceptional mechanical toughness and abrasion resistance against mineral slurries
  • Hardened SKD11 tool steel frame inserts installed along high wear perimeter die box cavity borders

Tool Configuration & Construction

  • Precision CNC machined multi cavity modular construction engineered for standard 600 by 600 mm core tile dimensions
  • Rigid stress relieved cast steel base bolster plates engineered to prevent tool flexing under full 1250 ton compaction loads

Key Tooling Features

  • High efficiency vacuum de airing micro passages and drainage channels for rapid air and moisture extraction
  • Integrated hydraulic and pneumatic ejector pin networks ensuring smooth release of dense green state gypsum panels

Alignment Accuracy

  • Upper punch plate to lower die cavity guide pillar alignment deviation kept strictly under a limit of 0.010 mm
  • Platen parallelism variance across the active tool workspace restricted within a tolerance of 0.010 mm

Process Materials

  • High strength alpha hemihydrate gypsum desulfurization gypsum powder and fine mineral cementitious fillers
  • Chopped E glass fibers refined cellulose pulp fibers and hydrophobic setting control additives

Surface Finish

  • Interior mold cavity surfaces ground polished and hard chrome plated down to a surface roughness of Ra 0.15 microns
  • Non stick cavity surface treatment preventing gypsum slurry adhesion and minimizing tool cleaning downtime

Tool Life

  • Expected operational span of 150000 compression molding cycles before requiring mandatory surface re polishing and inspection
  • Total structural steel mold frame and base assembly lifespan capacity reaching 1000000 production cycles before major rebuilds
Case Study (Die Performance)

Precision Raised Access Floor (RAF) Gypsum Core Panels Die Mold

P20 Cr-M Alloy SteelDie Steel
58–62 HRCHardness
Vacuum HardeningHeat Treatment
Core density completely stabilized
Exact panel thickness maintained
Edge micro-cracking completely eliminated
Panel warping completely prevented
Slurry de-airing fully optimized
Scrap reject rates minimized
Extended mold service life

04 — Product Application

Where Raised Access Floor (RAF) Gypsum Core Panels Are Used

Precision-molded raised access floor (RAF) gypsum core panels deliver high compressive load resistance, Class-A fire rating, and superior acoustic dampening. Their high-density calcium sulfate matrix and exact panel dimensions make them essential structural components for modern elevated floor systems across mission-critical facilities.

Industry Applications

Raised access floor (RAF) gypsum core panels are specified across data centers, corporate office towers, cleanroom facilities, control rooms, and transport hubs. High-tonnage hydraulic compression ensures ultra-high core density, exact 600x600 mm dimensional tolerances, and high compressive strength, enabling elevated flooring systems to handle extreme static and rolling loads while maintaining long-term acoustic and fireproofing integrity.

Data Centers, Server Rooms, and Telecommunication Hubs

Provides high concentrated and rolling load capacity to safely support heavy server racks, power distribution units, and cooling infrastructure. Offers non-combustible fire protection and excellent static electricity grounding when encapsulated with galvanized steel sheets.

Commercial Office Buildings, Financial Institutions, and Corporate Towers

Creates flexible underfloor cable management space for power, data, and HVAC ducting in modern open-plan office layouts. Delivers a solid, acoustic-dampening walking feel that eliminates hollow footstep noise while facilitating fast layout reconfigurations.

Cleanrooms, Semiconductor Fabs, and Pharmaceutical Laboratories

Deploys high-density, dust-free gypsum core floor panels that maintain strict ISO cleanliness standards and airflow management. Resists chemical exposure and ambient temperature fluctuations without panel warping, expansion, or structural degradation.

Control Rooms, Power Plants, Airport Terminals, and Public Infrastructure

Serves as heavy-duty raised flooring that tolerates continuous 24/7 foot traffic and heavy equipment maintenance loading. Ensures perfect modular interchangeability and precise panel flushness to prevent tripping hazards in high-security control centers.

Finished Product Gallery

1250T RAF Gypsum Core Panels Press finished product 1
1250T RAF Gypsum Core Panels Press finished product 2
1250T RAF Gypsum Core Panels Press finished product 3
1250T RAF Gypsum Core Panels Press finished product 4
1250T RAF Gypsum Core Panels Press finished product 5
1250T RAF Gypsum Core Panels Press finished product 6

05 — Key Advantages

Why Choose the 1250-Ton Sinter Hydraulic Press

The 1250-Ton Sinter Hydraulic Press delivers heavy-duty compaction force and rigid parallel slide guidance for molding high-density raised access floor gypsum core panels. Its robust four-column architecture, high-efficiency vacuum de-airing system, and multi-stage pressure control eliminate internal air pockets and guarantee flat, structural flooring tiles.

Technical & Commercial Benefits

01

High-Tonnage 1250-Ton Compression for Maximum Core Density

Applies massive, evenly distributed hydraulic force across high-strength gypsum formulations to purge entrapped air and consolidate core density. Ultra-high core compaction provides exceptional compressive and concentrated load capacities required for heavy-duty access floors.

02

Multi-Stage Pressure Ramping Protecting Fiber Matrix Alignment

Features programmable pressure control that compresses glass fiber and slurry mixtures gradually without fiber shear, displacement, or structural tearing. Controlled compaction preserves internal matrix cohesion while locking in uniform density across every 600x600 mm tile.

03

Rigid Four-Column Architecture Guaranteeing Absolute Panel Flatness

Engineered with pre-stressed forged alloy steel pillars that maintain strict upper and lower platen parallelism under full 1250-ton hydraulic loads. Zero platen deflection prevents tile warping, ensuring flush panel joints and perfectly level raised floor installations.

04

Programmable Hydraulic Dwell Optimizing Gypsum Matrix Bonding

Holds target pressure at bottom dead center to facilitate air evacuation, set the slurry matrix, and promote adhesion to metal encapsulation skins. Controlled dwell timing eliminates internal springback, maintaining tight thickness tolerances across high-volume production runs.

05

Smooth Variable-Speed Slide Motion Preventing Green-Core Fracturing

Decelerates upper platen advance speed right before mold engagement, preventing hydraulic shock and corner blowouts during compaction. Vibration-free ram movement protects fragile green-state gypsum cores during critical compaction and ejection cycles.

06

Automated Vacuum De-Airing and Pin Ejection Streamlining Line Output

Integrates active vacuum de-airing channels with precision hydraulic ejectors for rapid, non-destructive release of heavy, dense core panels. High cycle efficiency enables outputs of 60 to 90 panels per hour, maximizing plant profitability and lowering unit operational costs.

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