New vertical type EPS Block Moulding Machine in 2022

22/05/2024

This vertical EPS block molding machine was developed for plants where floor space is tight but output and density range cannot be compromised. It opens from one side only, which shortens the machine footprint and, more importantly, reduces the steam loss that a two-door machine suffers on every cycle.

Vertical type EPS block moulding machine with single side opening

Design points

  • Single-side opening — less floor space, less steam leakage per cycle, lower energy cost per block
  • Block density up to 50 kg/m³ — covers everything from lightweight insulation grades to dense board for load-bearing applications
  • Fast cycle time — achieved through efficient steam distribution and vacuum cooling
  • Lower energy consumption — the single door is the main reason; less steam escapes, so the boiler runs less

Construction

Welded carbon steel body of an EPS block moulding machine

The machine body is a welded carbon steel structure, which gives the frame the rigidity it needs to hold mould alignment under repeated steam pressure cycles. A frame that flexes produces blocks with uneven density and leaking parting lines.

Stainless steel mould plates inside an EPS block moulding machine

The inner walls are formed from stainless steel plates. Stainless matters here because the mould interior is permanently exposed to steam and condensate: a carbon steel face would rust, and rust both contaminates the block surface and increases the friction that prevents clean ejection.

320 mm feeding device on an EPS block moulding machine

Beads are fed into the mould through a 320 mm diameter feeding device — large enough to fill a full-size block quickly and evenly, so the mould does not fill unevenly from one end.

Foam pressure sensor monitoring block fusion on an EPS block moulding machine

Fusion quality is monitored by a foam pressure sensor. Instead of relying on a fixed steam time, the sensor follows the pressure curve inside the mould and confirms the beads have actually fused. That is what stops under-fused blocks leaving the machine.

Choosing a vertical machine

Vertical machines with single-side opening suit insulation board producers who need consistent density and low energy cost. For very high throughput plants, a horizontal EPS block molding machine is the usual alternative. Density itself is set upstream by the EPS pre-expander machine.

Send us your block size, target density and output and we will size the right model — contact us.