Eight engineered subsystems that make this machine production-grade. Each component is sourced, built, and tested for industrial duty cycles.
1. Steam Tank
Function
Stores steam for stable heating and consistent molding performance — the buffer between the steam boiler and the mold chamber.
Engineering Details
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.
2. Mold (Custom-Designed)
Function
Custom-designed molds ensure precise shape, smooth surface, and high dimensional accuracy — the core of EPS shape molding quality.
Engineering Details
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.
3. Steam Valve
Function
Distributes steam evenly into the mold chamber to ensure uniform preheating across complex product geometries — direct factor in bead fusion consistency.
Engineering Details
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.
4. Air Cylinder
Function
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.
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.
Engineering Details
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.
6. PLC Control System
Function
User-friendly interface with PLC system, pressure gauges and alarm indicators for easy operation and monitoring — recipes per product SKU for quick changeover.
Engineering Details
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.
Especificações Técnicas
3 models
Parâmetro
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
* As especificações estão sujeitas a alterações sem aviso prévio. Entre em contato para obter os dados técnicos mais recentes.
O Que Esta Máquina Resolve
Três problemas de produção eliminados por esta máquina — com soluções engenheiradas e mensuráveis.
O Problema 1
Ciclo de moldagem de formas de 60-90 segundos limita a produção diária e infla o custo por peça
Como Esta Máquina Resolve
Fechamento hidráulico SM-1200 + circulação fechada de vapor opera ciclos de 45-60 segundos com pérolas fast-cycling para caixas de peixe e insertos padrão (típico 60-90 s para embalagem geral, 120-150 s para peças automotivas espessas). Configuração fast-cycle em pérolas high-fusion 14-25 kg/m³: produção +50-70%.
O Problema 2
Condensado preso causa peças úmidas e deformadas que falham no QC
Como Esta Máquina Resolve
Portas duplas de secagem a vácuo + drenagem automática de condensado entrega ≤0,5% de umidade residual na peça acabada; rejeição de QC cai abaixo de 1,5%.
O Problema 3
Trocas frequentes de molde para diferentes SKUs custam 2-4 horas cada vez
Como Esta Máquina Resolve
Placa de molde de troca rápida + interface de fechamento padronizada reduz o intercâmbio de inserto de molde mesmo formato para ~45 minutos (reconfiguração completa de placa + tubulação de vapor para outro formato ainda leva 4-6 horas) — produção de SKU em pequenos lotes torna-se econômica.
Princípio de Funcionamento
A SM-1200 é uma máquina automática de moldagem de formas para peças customizadas de EPS/EPP. Pérolas pré-expandidas são carregadas em um molde fechado; vapor saturado funde as pérolas no formato final da peça; secagem a vácuo remove umidade; o fechamento hidráulico libera a peça resfriada. Os 1.200 referem-se ao tamanho da placa do molde em mm.
Step 1
1. Fechamento do Molde
Fechamento hidráulico fecha as metades do molde a 25 MPa de pressão de trabalho.
Step 2
2. Preenchimento de Pérolas
Injetores pneumáticos preenchem o molde uniformemente através de múltiplos canais.
Step 3
3. Aquecimento por Vapor
Vapor saturado a pressão de injeção cruzada 0,15-0,20 MPa (a partir de tanque de vapor 0,4-0,8 MPa via regulador, reduzindo à pressão de trabalho 0,08-0,12 MPa na cavidade do molde) funde pérolas em 15-25 s.
Step 4
4. Vácuo & Resfriamento
Portas duplas de vácuo removem umidade; água de resfriamento leva a peça a 50°C.
Step 5
5. Ejeção
Molde abre; ejetores pneumáticos empurram a peça acabada para fora.
Vantagens de Desempenho Engenheiradas
Cada vantagem respaldada por especificações mensuráveis — sem alegações de marketing sem dados.
Tempo de Ciclo
45-60 s (fish box, fast-cycle beads)
vs typical packaging 60-90 s / thick automotive 120-150 s
Circulação fechada de vapor + vácuo duplo reduz o ciclo em 40-50% em pérolas high-fusion 14-25 kg/m³. Ciclo real depende de espessura da peça, densidade, resfriamento do molde e pressão de suprimento de vapor.
Umidade Residual
≤0.5%
vs industry typical 1-2%
Menor umidade significa peças dimensionalmente estáveis direto da linha.
Tempo de Troca de Molde
~45 min (quick-insert) / 4-6 hr (complete)
vs industry typical 2-4 hours
O intercâmbio de inserto de molde do mesmo formato usa interface de fechamento padronizada — ~45 min. Reconfiguração completa de placa + tubulação de vapor para formato diferente leva 4-6 horas (norma da indústria).
Produção por Hora
~640 pieces/h (8-cavity fish box × 80 cyc/h)
vs single-cavity: 60-80 pcs/h
Cálculo exemplo: molde caixa de peixe 8-cavidades rodando ciclo 45s = 80 cyc/h × 8 = 640 caixas/h. Moldes multi-cavidade requeridos para altos volumes; moldes mono-cavidade apropriados para peças grandes (núcleos de capacete, blocos ICF) a 60-80 pcs/h.
Aplicações Reais de Produção
Veja onde esta máquina se encaixa em fábricas reais.
Fish box and aquaculture foam-box production for cold-chain seafood industry — primary EPS shape-molded product worldwide
Fruit and produce packaging inserts for export pallets — lightweight 15-18 kg/m³ density molded to fit specific produce shapes
Electronics and appliance protective foam — refrigerator cushions, TV protectors, monitor inserts
Configuração da Máquina
Componentes de grau industrial de marcas globais consagradas — cada peça rastreável.
Componente
Marca / Especificação
Detalhe
Controlador PLC
Siemens S7-1200
Armazenamento de receitas para múltiplos SKUs; backup em cartão SD.
HMI
Siemens / Weintek
HMI colorido de 10 polegadas; análise de tempo de ciclo; exibição OEE.
Sistema Hidráulico
Yuken
25 MPa, bloco de válvulas de 6 estações, circuito de liberação de emergência.
Bomba de Vácuo
Becker
Palheta rotativa seca, 60 m³/h, operação de porta dupla.
Solenoide de Vapor
Burkert
Ação rápida; tempo de resposta ≤30 ms para ciclos curtos.
Placa do Molde
SUS440 Stainless
1.200 × 1.000 mm; alinhamento por pinos de troca rápida.
Estudos de Caso de Clientes
Detalhes do cliente disponíveis sob solicitação.
RussiaAno: 2023
Configuração
3 × SM-1200 + 12 conjuntos de moldes, 50 t/mês de caixas de peixe
Resultado
Embalador de frutos do mar de Murmansk substituiu moldadoras italianas antigas; tempo de ciclo caiu de 75 s para 42 s, custo de energia diminuiu 22%.
SpainAno: 2024
Configuração
1 × SM-1200 + moldes de embalagem customizados
Resultado
OEM de inserto protetor para taças de vinho; molde de troca rápida viabiliza rotação de 8 SKUs por turno.
Maintenance & Safety
A clear schedule keeps the line running. Built-in safety systems protect operators and product alike.
Maintenance Schedule
Daily (every shift)
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.
Weekly
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).
Monthly
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.
Semi-Annual
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.
Annual
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.
Safety Features
CE certification per EN 60204-1 + EN ISO 13849-1 PLd for safety-related control systems
Pressure-relief valve on steam chamber at 0.18 MPa setpoint (2× operating pressure)
Hydraulic safety interlock prevents steam injection until 25-ton clamping force achieved
Two emergency-stop mushrooms (operator panel + machine side) — Category 0 stop within 100ms
Mold-open safety guard prevents operator hand-trap during clamping cycle
Vacuum pressure relief prevents implosion if condenser blockage occurs
Thermal cutoff in electrical cabinet (>60°C) — auto-shutdown logged for audit
Product-ejection clearance sensor halts ejector if foreign object detected in discharge path
Live Footage
See This Machine Running
Real ChinaEps production line footage from customer factories — not stock video.
The questions buyers ask most often before placing an order.
How is the SM-1200 different from the BM-1400 block-molding machine?
Three categories of difference. (1) Output: SM-1200 makes finished-shape products (fish boxes, cooler boxes, packaging inserts) ready for sale; BM-1400 makes blocks that need a downstream cutting step. (2) Mold: SM-1200 uses custom cavity inserts (one per product SKU); BM-1400 uses one standard block cavity. (3) Cycle: SM-1200 60-150 seconds per part; BM-1400 5-7 minutes per block. Use SM-1200 for finished-shape packaging and consumer products; use BM-1400 for cut-to-size insulation and geofoam.
What products can be made on a single SM-1200, and how long does mold changeover take?
Any finished EPS shape that fits within the 1,200×1,000×350mm work envelope. Common: fish boxes, cooler boxes, fruit-tray inserts, helmet liners, automotive bumper inserts, refrigerator cushions. Mold changeover 4-6 hours with the quick-change locking system. Most customers run 3-8 different SKUs per machine.
How are custom molds designed and made — what is the lead time?
Customer provides 3D CAD file (STEP or IGES format) of the desired finished product, or a physical sample we can reverse-engineer. ChinaEps engineering does mold design (1-2 weeks), customer approves, then mold manufacturing (4-6 weeks). Total custom mold lead time 6-8 weeks. Cast aluminum is standard; cost varies Contact us for pricing depending on product complexity.
What bead density range does the SM-1200 handle, and how does cycle time scale?
15-50 kg/m³ density range. Lower density (15-20 kg/m³ — typical for fish boxes and lightweight packaging) cycles 60-90 seconds. Mid-density (25-30 kg/m³ — automotive parts) cycles 100-130 seconds. Higher density (40-50 kg/m³ — premium FR-grade) cycles 130-150 seconds.
Can the SM-1200 work with EPP and fast-cycling EPS beads?
Yes — both. EPP requires slightly higher steam pressure (0.10-0.14 MPa) and longer cycles (15-25% more time). Fast-cycling EPS reduces cycle time 20-30% — particularly attractive for high-volume cooler-box producers. Mold material (aluminum) and clamping system are compatible with all bead types.
What is the steam boiler requirement?
Minimum 0.5 ton/h steam boiler at 0.15 MPa working pressure. Most customers run a 1.0 ton/h boiler to cover SM-1200 + upstream PE-1400 pre-expander + downstream operations. ChinaEps can quote the matching boiler + softener + condensate-return system.
Can the SM-1200 ship to 220V/60Hz markets?
Yes — factory build option. We swap hydraulic pump motor, vacuum pump motor, contactors, and VFD to 220V/60Hz equivalents. PLC and HMI are voltage-flexible. No price difference; 2-3 week lead time adjustment.
How many pieces per day, and how does that scale with product type?
At 90-second cycles (typical fish boxes): 40 cycles/hour × 8 hours = 320 cycles per shift. Multi-cavity molds (4-up or 6-up for small products) push this to 1,200-2,000 pieces/shift. Double-shift operation reaches 24,000+ pieces/day on small products like fruit-tray inserts.
What is the integration path with PE-1400 and downstream operations?
Standard line: PE-1400 → aging silo (24-72h) → SM-1200 → automated stacker (ST1200) → wrapping machine (SPLM). The SM-1200 PLC has analog/digital I/O for upstream/downstream handshaking. Most line integrations complete in 5-7 days on-site.
What is the operator training requirement?
Two options: (1) factory training in Qingdao for 2-3 days during pre-shipment testing (you cover travel); (2) on-site training for 3-5 days during commissioning (you cover travel + accommodation). Training covers PLC recipe management, mold changeover, troubleshooting common defects, and maintenance schedule. Materials in EN / ZH / ES / PT / FR / RU / AR.
Is the SM-1200 the same as a thermocol making machine?
Yes. "Thermocol" is the common name for EPS (expanded polystyrene) in India and South Asia, so a thermocol making machine and an EPS shape molding machine are the same equipment. The SM-1200 covers the full thermocol product range — disposable tableware, sheets, boxes, and decorative items. We ship to thermocol manufacturers across India, Bangladesh, Sri Lanka, and Nepal with CE certification and a 5-year warranty.
Can the SM-1200 make thermocol plates, cups, and dona?
Yes. The SM-1200 thermocol making machine produces thermocol plates, cups, dona (disposable bowls), trays, and boxes by steam-fusing EPS beads in custom aluminium molds. A single SM-1200 with a multi-cavity dona/plate mold produces 200-400 thermocol items per hour; swap molds in under 45 minutes to switch between thermocol plate making, cup making, and dona making on the same machine. We supply the complete thermocol plate making machine line — pre-expander, SM-1200 shape molder, and your choice of plate, cup, or dona molds.
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