SUSTAINABILITY

Green Performing Extrusion Blow Moulding Machines

Green Performing best practices

We design machines that minimize energy consumption, reduce waste and optimize material usage

Our solutions help manufacturers achieve their environmental goals while maintaining superior production efficiency and quality standards.

2025 -> 2030

vision journey to best sustainable impact

Minimum kwh/kg

Best Euromap 46.1 Class 10

Increased OEE

Reduced rejects (NOK Parts)
RAW MATERIAL COST SAVINGS
STONE

RAW MATERIAL COST SAVINGS

  • The superior weight control technology translates directly into measurable cost savings and improved production efficiency for your operation.
  • 500 points resolution of all parison thickness profile.
  • Wide usage of PWDS systems (axial and radial dynamic control of the parison thickness)
  • Less material waste and lower production costs
  • Estimated material savings of 4% compared to low-cost machines

Reducing the Raw Material consumption

Consistent Quality:
  • tighter weight distribution ensures uniform product quality
  • minimizes rejection rates and rework requirements
  • more constant production output
Process Control Excellence:
  • weight maintenance between MIN and MAX acceptance limits
  • significantly better performance compared to low-cost machines
  • reduces the risk of overweight parts that waste material
Long-term Cost Efficiency:
  • lower scrap rates
  • decreased quality control interventions
  • improved end-product consistency
Increase OEM
  • reducing the rejects
  • process monitoring
  • reaction to process value variation
LOW ENERGY CONSUMPTION
STONE POWERED BY ST

LOW ENERGY CONSUMPTION

BEST ST HERITAGE AND KNOW-HOW APPLICABLE ON STONE MACHINES ON REQUEST

The STONE machines could be equipped on request by the ST typical top features to increase power savings:

  • Severe heat insulation of the plasticizing section
  • Usage of synchronous reluctancy motors for all the extruders
  • Variable speed hydraulic pumps (for the hydraulic machines)
  • All-electric clamping units - toggle type

“Adiabatic” extruders (without cooling fans) with special screw and barrel configuration and design enabling the lowest power need to run at the best output.

Our special extruders screw and barrel design allows:

  • Minimum shear effect
  • No cooling fans
  • 90% less heat dissipation
  • Very low power consumption
Sustainability

THE STAGES OF OUR JOURNEY TOWARDS REAL SUSTAINABILITY

Identify sustainable actions appropriate to the company (done)
Design only machines and processes with low energy consumption (done)
Pursue recycling and upcycling strategies according to the Circular Economy thanks to BMM technologies (done)
Design machines able to process high percentages of recycled material (done)
Grant complete customer satisfaction on machine performance (done)
ISO 14064 – 2018 certification (2026)
NET Assessment (carbon neutrality) (2026)
Annual sustainability report (European Taxonomy KPI) (2027)
NFS (non-financial statement) and CSRD (Corporate Sustainability Reporting Directive) according to ESRS (European Sustainability Reporting Standards) (2027)
CSR report (Corporate Social Responsibility) with EU procedures (2027)
LCA (Life Cycle Assessment) and EPD (Environmental Product Declaration) (2028)
Top Ecovadis Ranking for ESG (Environmental, Social and Governance) and SRI (Socially Responsible Investment) (2029)
B-Corp Benefit Corporation (2030)
Scroll