BM-1200 Automatic Block Molding Machine — eps block molding machines by ChinaEps, CE & ISO 9001 certified.
An EPS block molding machine is industrial equipment that fuses pre-expanded polystyrene beads into large solid blocks using steam and pressure. The BM-1200 produces blocks up to 1,200 x 600 x 300 mm with hydraulic clamping, vacuum cooling, and 6-8 minute cycle times at densities of 8-30 kg/m3. It is designed for small to medium EPS factories producing insulation boards, packaging blocks, and construction panels.
| Parameter | Value |
|---|---|
| Block Size (L×W×H) | 1,200 × 600 × 300 mm |
| Cycle Time | 6-8 min |
| Steam Pressure | 0.08-0.12 MPa |
| Steam Consumption | 30-40 kg/cycle |
| Installed Power | 20 kW |
| Density Range | 8-30 kg/m³ |
| Vacuum System | Built-in water ring pump |
| Machine Weight | 8,000 kg |
* 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.
Small fish-box and decorative-trim producers need block molding but cannot justify BM-1400 CAPEX at <1,000 blocks/month
BM-1200 (block size 1,200 × 600 × 300 mm, 6-8 min cycle, 20 kW) is sized for 300-800 blocks/month — entry-level CAPEX, fast payback.
Entry-level block machines often skip steam-control PLC, leading to inconsistent block density and downstream cutting rejects
BM-1200 includes Siemens / Mitsubishi PLC standard — same as BM-1400 — keeps density variance under ±0.8 kg/m³ across blocks.
Eight engineered subsystems that make this cutting line production-grade. Each component is sourced, built, and tested for industrial duty cycles.
Smallest cavity in the BM family — right-sized for small EPS factories making thinner insulation boards (300mm blocks) or specialty packaging blocks.
Stainless steel walls with steam jacket. Quick-change insert option. Removable steam-screens for easy cleaning. Pre-heat 8-10 minutes.
120-ton clamping (vs 200-ton on BM-1400) sized for the smaller cavity. Prevents flash and ensures uniform block density.
Twin hydraulic cylinders. Closing speed 60-90 mm/s. Pressure-hold during steam phase. Safety interlock against steam injection until full clamping.
Distributes saturated steam through perforated plates surrounding the mold cavity. Same engineered hole pattern as BM-1400 scaled to smaller cavity.
316 stainless steam plates. 0.8mm holes on 6mm centers. Working pressure 0.08-0.12 MPa. Independent steam control per side.
Vacuum cooling cuts cycle time 30% vs air-cool. Same proven design as BM-1400 with smaller pump for the smaller cavity volume.
7.5 kW water-ring vacuum pump. Vacuum tank buffer for quick pulldown. Reaches 0.06 MPa in 45-60 seconds. Combined with water-spray cooling.
Pneumatic gun-style fill nozzles deliver uniform bead distribution into the mold cavity.
2-4 pneumatic injection guns. Air-assist pressure 0.3-0.5 MPa. Anti-static design. Material level sensors confirm fill completion.
Same Siemens PLC control as BM-1400, smaller HMI for the compact machine. Recipe-based control for product changeover.
Siemens S7-1200 PLC. 8" Weintek HMI. Recipe library for 15+ density variants. USB recipe export. Local fault log 500 events.
Hydraulic + pneumatic ejection removes freshly molded block without surface damage.
Hydraulic pusher with adjustable speed. Inner mold release coating reduces ejection force. Block position sensors confirm clean ejection.
Speeds heat extraction from block core during vacuum cooling. Same proven design as BM-1400.
316 stainless spray nozzles. Water flow 5-10 L/min. Closed-loop filtration prevents nozzle clogging.
BM-1200 fuses pre-expanded EPS beads into 1,200×600×300 mm blocks via steam injection from top + bottom mold halves. PLC controls steam pressure, heating time, vacuum cooling, and ejection.
Aged EPS beads pneumatically conveyed from aging silo to mold via injector — fill time 25-40 s.
0.08-0.12 MPa steam injected from top + bottom for 60-90 s — beads soften and fuse together.
Vacuum pump pulls down 80-90 kPa for 90-150 s — accelerates internal cooling, prevents block deformation on ejection.
Mold opens; pneumatic ejector pushes the finished block onto roller conveyor for aging or direct cutting.
Every advantage backed by measurable specs — no marketing claims without data.
Slightly longer cycle due to smaller heat-transfer area — acceptable trade-off for small-block applications.
Smaller block = less steam — lower steam-generator and water consumption costs.
Sweet spot for downstream CM-2000 cutting machine — minimal off-cuts.
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 / Mitsubishi | S7-1200 / FX5U class, 7-inch HMI touchscreen, Ethernet remote-monitoring port |
| Steam Valves | Schmalz / SMC | DN50 pneumatic actuators, 304 SS bodies, 1M cycle life |
| Vacuum Pump | Becker / Busch | Rotary vane, 100 m³/h displacement, 0.5 mbar ultimate vacuum |
| Mold (Aluminum) | In-house cast | Cast aluminum A356-T6, perforated steam plates, ±0.5 mm dimensional accuracy |
Customer details available on request.
480 blocks/month, single-shift, 1,200 × 600 × 300 mm
Hanoi fish-box converter started with BM-1200; payback in 16 months. Upgraded to BM-1600 second line Q2 2026 after orders grew 3×.
A clear schedule keeps the line running. Built-in safety systems protect operators and product alike.
Inspect mold cavity. Check steam pressure (0.08-0.12 MPa). Clean steam-screen perforated plates. Verify hydraulic pressure (120-ton spec). Test e-stop function.
Lubricate hydraulic cylinder seals. Inspect water-ring vacuum pump. Check pneumatic fill nozzles. Drain steam condensate.
Open mold; clean cavity. Inspect steam injection holes. Service vacuum pump water seal. Recalibrate steam pressure transducers.
Inspect hydraulic clamping cylinders for seal wear. Replace water-ring vacuum pump seal. Verify cooling water filtration system.
Major overhaul: replace hydraulic cylinder seals, service Siemens PLC battery, recertify pressure-relief safety system, update PLC firmware.
The questions buyers ask most often before placing an order.
This machine integrates into the full ChinaEps production flow — upstream, downstream, and auxiliary equipment from one supplier.
Full in-house manufacturing capability behind every machine we ship.
Beyond shipping — we stand behind every machine we deliver.
Core components warranted for 5 years; standard parts 12 months.
Technical engineers respond within 24 hours via WhatsApp / email / video call.
Our technicians travel worldwide for installation, commissioning, and repair.
Hands-on training plus full technical documentation in your language.
Quick reference numbers — for a precise quote with your factory data, use the ROI Calculator.
Get a customized turnkey solution — competitive pricing, proven technology, and full after-sales support from our engineering team.
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