01 — Press System
315 Ton Four Pillar Hydraulic Press Machine
The 315-ton four-pillar hydraulic press from Sinter Hydraulics India is an ideal industrial solution for molding GRG ceiling tiles, delivering precise pressure control for brittle gypsum composites, consistent aesthetics, structural integrity, and scalable production for architectural markets. Designed with rigid guide pillars and smooth multi-stage speed control, it ensures flawless compaction without micro-cracking delicate slurry-fiber mixtures.
Use Case
The 315-ton four-pillar hydraulic press is engineered for precision molding and compaction of GRG ceiling tiles and decorative architectural panels made from high-strength gypsum slurry, chopped glass fibers, and additives. Used after slurry placement and fiber lay-up, the press compacts the mix uniformly, removes trapped air, achieves consistent thickness and sharp detailing, and improves overall mechanical strength and dimensional stability.
Core Applications
- Compression molding and compaction of Glass Fiber Reinforced Gypsum (GRG) ceiling tiles, acoustic baffles, and wall panels
- Precision molding of architectural GRG elements including 3D wall cladding, decorative cornices, ceiling domes, and light coves
- High-density compaction of composite gypsum panels requiring strict thickness tolerances, smooth surfaces, and sharp relief edges
Material
- Alpha and beta grade high-purity gypsum slurry formulations blended with water-reducing polymers and setting accelerants
- E-glass fiber rovings, chopped glass strand mats, and alkali-resistant (AR) woven glass fiber reinforcement meshes
- Lightweight mineral fillers, fire-retardant additives, hydrophobic waterproofing agents, and pigment dispersions
Typical Products Processed
- Standard lay-in 600 x 600 mm and 1200 x 600 mm GRG modular ceiling tiles with textured or smooth plaster finishes
- Acoustic perforated GRG ceiling panels equipped with sound-absorbing fleece backings for auditorium and office installation
- High-definition 3D geometric architectural wall panels, decorative ceiling medallions, and recessed lighting trough profiles
Key Functions
- Application of uniform hydraulic compression across the entire mold cavity to thoroughly bleed out trapped air bubbles and micro-voids
- Multi-stage pressure ramping and programmable dwell holding to allow proper gypsum slurry crystallization and mold filling
- Controlled slow mold closure velocity to prevent glass fiber reinforcement displacement or slurry washout during compaction
- Precision hydraulic ejector pin actuation ensuring gentle, crack-free release of delicate green-state GRG tiles from mold cavities
Why 315 Ton Hydraulic Press?
- Delivers 315 tons of smooth, evenly distributed hydraulic clamping force necessary to fully compact dense GRG slurries without fracturing molds
- Four-pillar guide alignment maintains exact platen parallelism, ensuring zero tile thickness variation and perfectly flat architectural panels
02 — Technical Specifications
SM 315 HP – HYDRAULIC PRESS MACHINE COMPLETE TECHNICAL DATA
The SM 315 HP hydraulic press delivers smooth, low-vibration compression and precise parallel platen guidance tailored for GRG ceiling tile molding. Its four-column guide structure and multi-stage pressure control prevent air entrapment, eliminate slurry displacement, and ensure uniform tile density across large mold areas.
Capacity
- Maximum continuous compression molding force capacity of 3150 kN
- Dedicated hydraulic bottom ejector force capacity of 600 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 600 mm
- Electronic stroke length limitation positioning resolution accurate within 0.005 mm
Working Hydraulic Pressure
- Maximum continuous operating main hydraulic system fluid pressure of 210 bar
- Peak shock safety valve pressure relief calibration threshold limit of 240 bar
Daylight Gap
- Maximum open vertical daylight window working clearance of 1000 mm
- Minimum closed shut die height tool workspace space of 250 mm
Approach Speed
- Accelerated downward advance slide rapid travel speed of 220 mm/Sec
- Controlled slurry mold engagement deceleration velocity of 10 mm/Sec
Pressing / Drawing Speed
- Precision GRG slurry compaction molding speed of 3 to 12 mm/Sec
- Maximum resistance continuous molding compression velocity of 15 mm/Sec
Return Speed
- Smooth upward ram extraction retraction travel speed of 180 mm/Sec
- Fast automated hydraulic decompression pre return system cycle timing
Bed / Platen Size Platen
- Total clear bolster bed width left to right of 1400 mm
- Total clear bolster bed depth front to back of 1200 mm
Columns
- High tensile forged alloy steel pillar diameter of 180 mm
- Heavy duty wear resistant bronze guide bushings with automatic grease lubrication
Working Envelope
- Total horizontal internal clear workspace area of 1400 by 1200 mm
- Maximum permissible upper compression mold assembly mass weight of 4500 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 37 kW
- Dedicated auxiliary cooling and continuous oil filtration motor power of 4 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 315 HP — Model Specifications
- Nominal Force: 3150 KN
- Maximum Hydraulic Pressure: 25 MPa
- Max Opening Height of the Slider: 1000 mm
- Max Stroke of the Slider: 600 mm
- Effective Bed Size: 800 × 800 mm
- Slider Down Speed: 100 mm/s
- Slider Pressing Speed: 7–12 mm/s
- Slider Return Speed: 90 mm/s
- Ejector Cylinder Nominal Force: 300 KN
- Stroke of the Ejection Cylinder: 300 mm
03 — Die / Mold System
Precision GRG (Glass Fiber Reinforced Gypsum) Interior Ceiling Tiles Die Mold Engineering
This precision GRG ceiling tile compression mold features CNC-machined aluminum pattern cavities, integrated vacuum de-airing channels, and pneumatic ejector networks. Engineered for 315-ton hydraulic pressing, it ensures uniform slurry compaction, removes trapped air, and delivers sharp architectural surface detail.
Technical Specifications (Tooling)
Die Type
- Multi cavity compression compaction mold assembly for Glass Fiber Reinforced Gypsum interior ceiling tiles
- Matched upper floating compression platen and lower female textured pattern mold set with pneumatic part ejection
Die Materials
- Aircraft grade 7075 T6 billet aluminum alloy mold plates offering superior thermal conductivity and corrosion resistance
- Wear resistant chromium plated steel edge framing rails installed along high wear perimeter sealing margins
Tool Configuration & Construction
- Precision CNC engraved modular silicone pattern insert carrier frames for fast decorative design pattern changes
- Rigid stress relieved cast aluminum base plates engineered to prevent mold flexing under full 315 ton compaction loads
Key Tooling Features
- Micro porous perimeter air venting and vacuum de airing channels for rapid evacuation of trapped air bubbles
- Multi point pneumatic ejector pin networks ensuring smooth release of fragile green state wet GRG tiles without surface cracking
Alignment Accuracy
- Upper compression plate to lower pattern cavity guide pillar alignment deviation kept strictly under a limit of 0.010 mm
- Platen parallelism variance across the active mold workspace restricted within a tolerance of 0.010 mm
Process Materials
- High purity alpha and beta gypsum slurries blended with water reducing polymers and setting acceleration additives
- Chopped E glass fiber strands woven alkali resistant AR glass mesh layers and lightweight mineral filler compounds
Surface Finish
- Interior decorative mold cavity surfaces polished and Teflon PTFE coated down to a surface roughness of Ra 0.15 microns
- Hydrophobic non stick cavity surface treatment preventing gypsum slurry adhesion and reducing mold cleaning intervals
Tool Life
- Expected operational span of 150000 compression molding cycles before requiring mandatory surface coating re application and inspection
- Total structural aluminum mold frame and base assembly lifespan capacity reaching 1000000 production cycles before major rebuilds
Precision GRG (Glass Fiber Reinforced Gypsum) Interior Ceiling Tiles Die Mold
04 — Product Application
Where GRG (Glass Fiber Reinforced Gypsum) Interior Ceiling Tiles Are Used
Precision-molded Glass Fiber Reinforced Gypsum (GRG) interior ceiling tiles provide superior fire resistance, exceptional acoustic performance, and high aesthetic versatility. Their light weight, dimensional stability, and crisp architectural detailing make them preferred overhead solutions for modern commercial, institutional, and luxury residential interiors.
Industry Applications
GRG interior ceiling tiles are extensively specified across commercial real estate, hospitality architecture, cultural venues, healthcare centers, and high-end residential developments. High-pressure hydraulic compaction produces dense, void-free gypsum composites with crisp pattern definition and flat edges, allowing tiles to drop into standard ceiling T-grids or mount as concealed acoustic panels while meeting stringent international fire safety and acoustic building standards.
Commercial Office Towers, Corporate Head-Offices, and Business Parks
Provides lightweight acoustic ceiling grids that absorb ambient noise and reduce reverberation in open-plan workspaces. Delivers warp-free dimensional stability, non-combustible fire protection, and seamless integration with modern HVAC and lighting fixtures.
Luxury Hotels, Shopping Malls, and Entertainment Complexes
Serves as high-definition decorative ceiling panels, 3D feature walls, and recessed lighting coves in grand lobbies and atrium spaces. Offers exceptional surface smoothness and precise geometric detailing that accept custom paint finishes, metallic foils, and wood veneers.
Auditoriums, Concert Halls, and Educational Institutions
Utilizes custom-perforated acoustic ceiling tiles and sound-diffusing panels engineered to optimize sound propagation and clarity. Withstands high humidity and ambient temperature variations without sagging, yellowing, or degrading over long operational lifespans.
Healthcare Facilities, Hospitals, and Cleanroom Infrastructure
Deploys smooth, non-porous GRG ceiling tiles that resist dust accumulation, mold growth, and chemical cleaning agents. Ensures non-toxic, zero-VOC indoor air quality compliance, supporting sterile and hygienic conditions in critical medical zones.
Finished Product Gallery
05 — Key Advantages
Why Choose the 315-Ton Sinter Hydraulic Press
The 315-Ton Sinter Hydraulic Press delivers smooth, low-vibration compression and precise parallel slide guidance for molding GRG ceiling tiles. Its rigid four-column architecture, multi-stage pressure ramping, and programmable dwell control eliminate air voids and guarantee flat, high-density tiles with sharp architectural details.
Technical & Commercial Benefits
Controlled 315-Ton Hydraulic Compression Eliminating Slurry Void Entrapment
Applies smooth, evenly distributed hydraulic pressure across the mold surface to thoroughly bleed out trapped air bubbles and micro-voids. Uniform compaction ensures dense, structural gypsum tiles without internal voids or surface pinholes.
Multi-Stage Pressure Ramping and Dwell Control Preserving Material Integrity
Features programmable pressure ramping to gently compress wet gypsum slurry and embedded glass fiber mesh without fiber displacement. Controlled dwell cycles allow optimum gypsum slurry setting and complete mold pattern replication.
Rigid Four-Column Architecture Ensuring Absolute Tile Thickness Uniformity
Constructed with heavy pre-stressed forged steel pillars that maintain strict upper and lower platen parallelism under full compaction loads. Zero platen tilting prevents edge thickness variation, ensuring tiles lay completely flat in ceiling T-grids.
Smooth Variable-Speed Slide Motion Preventing Fragile Green-State Cracking
Decelerates upper slide approach velocity right before slurry contact, preventing hydraulic shock and splash washout. Smooth, vibration-free ram movement protects delicate green-state tiles during critical compaction and initial setting stages.
Integrated Pneumatic and Hydraulic Ejection Streamlining Tile Release
Equipped with multi-point pneumatic ejectors and gentle hydraulic pin networks designed for non-destructive release of wet gypsum tiles. Automated part ejection prevents tile corner chipping, minimizes handling damage, and accelerates production cycle times.
High Hourly Yields and Reduced Reject Rates Maximizing Line Profitability
Combines fast approach speeds with automated mold tray transfer systems to achieve high production outputs of 45 to 80 tiles per hour. Consistent compaction quality dramatically lowers material scrap rates and reduces manual finishing labor.