Graphite Block Press
Graphite Block Press — Machine Data, Bolster Dimensions & Die Integration
HEMSUN ENGG. INDUSTRIES manufactures the Graphite Block Press (Series HSE-387) in Dahegam, Gandhinagar, Gujarat, India for high-performance compaction and moulding of sintering billets & heavy blocks. Engineered with heavy-duty structural rigidity, programmable pressure dwell (3,000–4,500 psi / 300–500 kg/cm²), precision ejection hydraulics, and PLC touchscreen controls for domestic and export plants.
Applications
- Serial compaction and forming of sintering billets & heavy blocks for industrial processors (Workstation Ref: APP-1287).
- Integrated die-set tooling for sintering billets & heavy blocks with automated powder cavity charging and synchronized bottom ejection.
- Programmable density management on graphite compounds with controlled pressure dwell cycles from 32s to 4min.
- Export-compliant production line equipped with multi-voltage electrical cabinet (380V/60Hz) and complete FAT documentation.
How this press is built
Built to satisfy strict density requirements on sintering billets & heavy blocks (Billet Diameter Ø 208 mm to Ø 438 mm × 550 mm), the Graphite Block Press exerts 237 Ton of force through a variable-speed hydraulic pack. The pressing program holds peak force for 77 seconds to ensure complete air evacuation. Automatic stepped decompression precedes part extraction, safeguarding component geometry against tensile cracking.
Material behaviour under compaction
Because fine-grain synthetic carbon graphite requires substantial compaction depth prior to sintering, the press daylight and stroke are sized to accommodate deep powder cavity charges. Precision pressure regulation ensures uniform molecular rearrangement without inducing internal shear planes or compaction voids.
Tooling and die design
Bolsters feature precision-milled DIN standard T-slots and central ejector clearance openings. Hard-chrome plated guide pillars (50 µm layer, 60 HRC) ride within self-lubricating phosphor bronze guide bushes with spiral oil grooves, ensuring long-term punch concentricity for sintering billets & heavy blocks dies.
Sizing and machine selection
Engineers evaluating the Graphite Block Press should supply drawing tolerances, raw resin grade, and expected batch volume. We review hydraulic force parameters (237 Ton standard) and provide complete engineering documentation and tooling layouts.
Quality checks and inspection
Quality benchmarks include laser-guided platen alignment verification, hydraulic overpressure relief testing, safety circuit validation, and trial compaction of sample parts with density analysis before shipment.
Installation and commissioning
Installation documentation includes foundation drawings, electrical panel schematics, and hydraulic piping diagrams. HEMSUN provides on-site commissioning and operator maintenance instruction.
Export packing and lead time
Export units are built with multi-voltage electrical switchgear (480V/60Hz) and heavy-duty ocean shipping packaging inside heat-treated wooden crates, supported by complete commercial and technical export documentation.
Maintenance and spare parts
Upkeep protocols specify hydraulic fluid replacement at 2,000 hours, routine guide post greasing, and seal evaluations. Replacement valves and seal packages ship promptly from our Gujarat facility.
Safety and guarding
Standard safety features include optical light curtain arrays, concurrent two-hand cycle initiation, pilot-operated check valves against ram drop, and prominent emergency stop switches.
Specifications
| Property | Value |
|---|---|
| Machine Series & Model | Graphite Block Press (Series HSE-387) |
| Rated Tonnage Capacity | 500 Ton (Ultra-Dense Powder Compaction Line) |
| Target Part Size Envelope | Billet Diameter Ø 208 mm to Ø 438 mm × 550 mm |
| Platen Bolster Dimensions | 360 × 360 mm ground steel bolster with T-slots |
| Daylight & Ram Stroke | 820 mm daylight / 660 mm main ram stroke |
| Specific Compaction Pressure | 2,600–3,900 psi (260–390 kg/cm²) |
| Pressure Dwell Control Band | 10 seconds to 45 seconds high-speed cycle dwell |
| Main Motor & Electricals | 15 HP 3-Phase 415V (Dual-pump regenerative circuit) |
| Hydraulic Reservoir Volume | 230 Liters ISO VG 68 tank with forced-air oil cooler |
| Overall Machine Dimensions | 1850 × 2250 × 2950 mm |
| Automation & PLC Architecture | Electro-Hydraulic Dual-Pushbutton Console with Digital Pressure Readout |
| Manufacturing & Testing Origin | Fabricated, Assembled & Tested at Dahegam, Gandhinagar, Gujarat, India |
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Frequently Asked Questions
What is the Graphite Block Press used for?
The Graphite Block Press from HEMSUN ENGG. INDUSTRIES is engineered for Serial compaction and forming of sintering billets & heavy blocks for industrial processors (Workstation Ref: APP-1287).; Integrated die-set tooling for sintering billets & heavy blocks with automated powder cavity charging and synchronized bottom ejection.; Programmable density management on graphite compounds with controlled pressure dwell cycles from 32s to 4min.. Share your part drawing, powder type, and annual volume so we can match tonnage, cavity layout, and automation.
Can HEMSUN customize the Graphite Block Press tonnage and controls?
Tonnage options include 500 Ton (Ultra-Dense Powder Compaction Line). Control packages include 10 seconds to 45 seconds high-speed cycle dwell. Engineers evaluating the Graphite Block Press should supply drawing tolerances, raw resin grade, and expected batch volume. We review hydraulic force parameters (237 Ton standard)…
Do you install and train operators for the Graphite Block Press?
Yes. Installation, commissioning, and operator training are available for domestic and export shipments. Fabricated, Assembled & Tested at Dahegam, Gandhinagar, Gujarat, India. Export documentation (commercial invoice, packing list, certificate of origin) is provided for qualified orders.
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