Complete-line EPS specialist — 500+ factories running on our equipment
EPS Shape Molding Machine — Packaging, Fish Box & ICF — eps shape molding machines by ChinaEps, CE & ISO 9001 certified.
We manufacture EPS shape molding machines — SM-1000/1200/1400, platen to 1,200×1,000mm, 60-90s cycle, vacuum cooling, Siemens PLC. CE + ISO 9001 certified.
Eight engineered subsystems that make this machine production-grade. Each component is sourced, built, and tested for industrial duty cycles.
Stores steam for stable heating and consistent molding performance — the buffer between the steam boiler and the mold chamber.
Working steam pressure 0.4-0.8 MPa. AISI 304 stainless steel pressure vessel, TUV / Bureau Veritas certified. Insulated to minimize heat loss between molding cycles.
Custom-designed molds ensure precise shape, smooth surface, and high dimensional accuracy — the core of EPS shape molding quality.
Cast or CNC-machined 6061 aluminum. Surface anodized for durability + clean release. Engineered steam channels for uniform heating. Vent pin holes (Ø 0.5 mm) prevent air-trap defects. Quick-change locking system — 4-6 hour mold swap.
Distributes steam evenly into the mold chamber to ensure uniform preheating across complex product geometries — direct factor in bead fusion consistency.
Gemu-Germany or Burkert-Germany proportional valves. PLC-controlled solenoid array, 2-4 independent steam zones. Closed-loop pressure regulation 0.08-0.12 MPa during steam burst.
Pneumatic actuator that drives mold opening, closing, and product ejection with consistent timing and gentle release — protects the mold-release coating for million-cycle service life.
Festo-Germany pneumatic cylinders rated 1 million+ cycles. Working air pressure 0.5-0.7 MPa. Anti-static design prevents bead clumping. Adjustable cushioned end-stops protect mold integrity.
Removes air and residual moisture from the mold cavity for fast cycle times and dimensionally stable products — the single biggest factor in cutting cycle time 30-40% vs air-only cooling.
Water-ring vacuum pump (7.5-11 kW Becker/Edwards equivalent). Cylindrical vacuum buffer tank. Reaches 0.06 MPa absolute pressure in 30-45 seconds. Cycle time 30-300s depending on product complexity.
User-friendly interface with PLC system, pressure gauges and alarm indicators for easy operation and monitoring — recipes per product SKU for quick changeover.
Siemens S7-1200 PLC + 10-12" Weintek HMI touch screen. 99-recipe storage library. USB recipe export; optional Ethernet/IP for MES integration. 380V / 50Hz / 3-Phase. Multi-user accounts (operator/supervisor/maintenance) with audit trail.
| Parameter | SM-1000 | SM-1200 | SM-1400 |
|---|---|---|---|
| Tier | Entry / Small batch | Mid-range / Most popular | Premium / Large-format |
| Mold Platen Size (L×W) | 1,000 × 800 mm | 1,200 × 1,000 mm | 1,400 × 1,200 mm |
| Max Product Size | 950 × 750 × 300 mm | 1,150 × 950 × 350 mm | 1,350 × 1,150 × 400 mm |
| Cycle Time | 45-120 seconds | 60-150 seconds | 75-180 seconds |
| Steam Pressure | 0.08-0.12 MPa | 0.08-0.12 MPa | 0.08-0.12 MPa |
| Clamping Force | 15 tons (hydraulic) | 25 tons (hydraulic) | 40 tons (hydraulic) |
| Steam Consumption | 5-10 kg / cycle | 8-15 kg / cycle | 12-22 kg / cycle |
| Cooling Method | Vacuum + water spray | Vacuum + water spray | Vacuum + water spray |
| Voltage | 380V / 50Hz (220V/60Hz optional) | 380V / 50Hz (220V/60Hz optional) | 380V / 50Hz (220V/60Hz optional) |
| Installed Power | 18 kW | 25 kW | 40 kW |
| Ejection System | Hydraulic + pneumatic dual-stage | Hydraulic + pneumatic dual-stage | Hydraulic + pneumatic dual-stage |
| Mold Change Time | 4-6 hours quick-change | 4-6 hours quick-change | 4-6 hours quick-change |
| Density Range | 15-50 kg/m³ | 15-50 kg/m³ | 15-50 kg/m³ |
| Compatible Beads | EPS / EPP / fast-cycling / flame-retardant | EPS / EPP / fast-cycling / flame-retardant | EPS / EPP / fast-cycling / flame-retardant |
| Machine Weight | 6,500 kg | 8,500 kg | 12,000 kg |
| Dimensions (L×W×H) | 3,400 × 2,200 × 2,800 mm | 3,800 × 2,400 × 3,000 mm | 4,300 × 2,700 × 3,300 mm |
| Control System | Siemens S7-1200 PLC + 10" Weintek HMI | Siemens S7-1200 PLC + 10" Weintek HMI | Siemens S7-1200 PLC + 12" Weintek HMI |
| Certifications | CE + ISO 9001 | CE + ISO 9001 | CE + ISO 9001 |
* Specifications are subject to change without notice. Contact us for the latest technical data.
Three production problems eliminated by this machine — with engineered, measurable solutions.
Shape molding cycle of 60-90 seconds caps daily output and inflates per-piece cost
SM-1200 hydraulic clamping + closed steam circulation runs 45-60 second cycles on fast-cycling beads for standard fish-box and packaging-insert molding (typical 60-90 s for general packaging, 120-150 s for thick automotive parts). Fast-cycle configuration on 14-25 kg/m³ high-fusion beads: output up 50-70%.
Trapped condensate causes wet, deformed parts that fail QC
Dual-vacuum drying ports + auto-condensate drainage delivers ≤0.5% residual moisture in finished part; QC rejection drops below 1.5%.
Frequent mold changes for different SKUs cost 2-4 hours each time
Quick-change mold platen + standardized clamp interface cuts same-format mold-insert swap to ~45 minutes (complete platen + steam-piping reconfigure for a different format still takes 4-6 hours) — small-batch SKU production becomes economical.
SM-1200 is an automatic shape molding machine for custom EPS/EPP parts. Pre-expanded beads are loaded into a closed mold cavity; saturated steam fuses beads into the final part shape; vacuum drying removes moisture; hydraulic clamp releases the cooled part. The 1,200 refers to the platen size in mm.
Hydraulic clamp closes mold halves at 25 MPa working pressure.
Pneumatic injectors fill cavity uniformly through multiple gates.
Saturated steam at 0.15-0.20 MPa cross-injection pressure (from 0.4-0.8 MPa steam tank via regulator, stepping down to 0.08-0.12 MPa mold cavity working pressure) fuses beads in 15-25 s.
Dual vacuum ports remove moisture; cooling water drops part to 50°C.
Mold opens; pneumatic ejectors push finished part out.
Every advantage backed by measurable specs — no marketing claims without data.
Closed steam circulation + dual vacuum cuts cycle 40-50% on 14-25 kg/m³ high-fusion beads. Actual cycle depends on part thickness, density, mold cooling, and steam supply pressure.
Lower moisture means dimensionally stable parts straight off the line.
Same-format mold-insert swap uses standardized clamp interface — ~45 min. Complete platen + steam-piping reconfigure for a different format takes 4-6 hours (industry norm).
Example calculation: 8-cavity fish-box mold running 45s cycle = 80 cyc/h × 8 = 640 boxes/h. Multi-cavity molds required for high piece counts; single-cavity molds appropriate for large parts (helmet cores, ICF blocks) at 60-80 pcs/h.
See where this machine fits in real factories.
Industrial-grade components from established global brands — every part traceable.
| Component | Brand / Spec | Detail |
|---|---|---|
| PLC Controller | Siemens S7-1200 | Recipe storage for multiple SKUs; SD-card backup. |
| HMI | Siemens / Weintek | 10-inch color HMI; cycle-time analytics; OEE display. |
| Hydraulic System | Yuken | 25 MPa, 6-station valve block, emergency-release circuit. |
| Vacuum Pump | Becker | Dry rotary vane, 60 m³/h, dual-port operation. |
| Steam Solenoid | Burkert | Fast-acting; ≤30 ms response time for short cycles. |
| Mold Platen | SUS440 Stainless | 1,200 × 1,000 mm; quick-change pin alignment. |
Customer details available on request.
3 × SM-1200 + 12 mold sets, 50 t/month fish boxes
Murmansk-based seafood packer replaced legacy Italian shape molders; cycle time dropped from 75 s to 42 s, energy cost down 22%.
1 × SM-1200 + custom packaging molds
Wine-glass protective insert OEM; quick-change mold enables 8 SKU rotation per shift.
A clear schedule keeps the line running. Built-in safety systems protect operators and product alike.
Inspect mold cavity for bead residue or surface damage. Verify hydraulic pressure (25-ton spec) at clamping. Check steam pressure gauges (0.08-0.12 MPa). Clean ejector pin holes of bead debris. Test e-stop function. Reset product counter at shift start.
Lubricate hydraulic cylinder seals and ejector pin mechanisms. Inspect water-ring vacuum pump impeller. Check pneumatic bead-fill guns for wear. Drain steam condensate from low points. Verify mold-release coating condition (re-apply if showing wear).
Open mold; clean cavity interior with food-grade detergent. Inspect aluminum mold for cracks or wear (visible at parting line first). Service vacuum pump water seal. Recalibrate steam pressure transducers. Backup PLC recipes to USB.
Inspect hydraulic clamping cylinder for seal wear. Replace water-ring vacuum pump seal. Recalibrate load cells. Verify ejector pin alignment (±0.1mm spec). Re-apply mold-release coating per OEM schedule.
Major overhaul: replace hydraulic cylinder seals (5,000h spec), service Siemens PLC battery, recertify pressure-relief safety system, update PLC firmware per Siemens advisories, refresh operator training including quick-change mold procedure.
Real ChinaEps production line footage from customer factories — not stock video.
This machine integrates into the full ChinaEps production flow — upstream, downstream, and auxiliary equipment from one supplier.
Feeds aged EPS beads directly into SM-1200 fill system. ±0.5 kg/m³ density consistency upstream = uniform product density downstream.
Fluidized-bed silos hold pre-expanded beads 8-72 hours before shape molding. Required between PE-1400 and SM-1200 for moisture stabilization.
ChinaEps engineering team designs and manufactures custom aluminum cavity inserts for any finished product. 6-8 week lead time.
Stacks finished products from SM-1200 in palletizing-ready configuration. Reduces manual handling labor by 60-80%.
Shrink-wraps stacked products for storage and shipment. Standard downstream after ST1200 stacker.
Modular roller/belt conveyors transport finished products from SM-1200 to stacker / warehouse / loading bay.
Reground scrap from defective products feeds back to PE-1400 as regrind. Closes the material loop and recovers 3-5% bead consumption.
Specialty fast-cycling beads reduce SM-1200 cycle time 20-30% — attractive for high-volume cooler-box and packaging producers.
Quick reference numbers — for a precise quote with your factory data, use the ROI Calculator.
The questions buyers ask most often before placing an order.
Get a customized turnkey solution — competitive pricing, proven technology, and full after-sales support from our engineering team.
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