Equipment
Impro is a globally recognized manufacturer of high-value-added and complex sand castings for diverse end markets. We are equipped with advanced process technologies and state-of-the-art equipment throughout the manufacturing operations.
Full-Service Sand Casting
Impro offers one-stop solutions for all your sand casting needs. We provide a full suite of state-of-the-art process technology and equipment throughout our multiple facilities.
Listed below are Impro’s sand casting equipment and process capabilities.
Core Making
Hot-box core making
- used for medium- and high-volume production
- Machines: KC800, KC600, and KC400
- Sand injection pressure: 0.4–0.6 MPa
- Max. sand core weight: 40 kg

Cold-box core making
- used for medium- and high-volume production
- Machines: 80L Cold-Box Core Making Machine and 450L Cold-Box Core Making Machine
- Max. sand injection pressure: 0.6 MPa
- Max. sand core weight: 500 kg
- Max. size: 1,600 × 1,600 mm
Molding
Resin-sand process
-We own three resin-sand production lines as well as manual molding machines
IMF Automatic Molding Line: for large parts or small-volume production
- Automatic molding system (molding, coating and drying system
- 4 molds/hour
- Flask size: 4,200 × 3,200 × 1,000/1,000 mm
- Product weight: 1~8 T

IMF Automatic Molding Line: for medium-sized parts
- 4 molds/hour
- Flask size: 1,600 × 1,200 × 1200 mm
- Product weight: 50–500 kg
IMF Automatic Molding Line: for small parts
- 10 molds/hour
- Flask size: 1,200×800×500/500 mm
- Product weight: 1–50 kg
Green sand process
-We own two FBO Automatic Production lines and a Z149 production line
FBO Automatic Molding Line
- 80-120 molds/hour
- Flask size: 610×508×250/250 mm
- Product weight: 0.5–20 kg
Z149 Molding Line
- 60 molds/hour
- Flask size: 900×700×300/300 mm
- Product weight: 1–100 kg
Pouring
- Melting furnace volume: 1–6 tons
- Normal ductile iron: GGG35~80
- Normal gray iron: GG15~35
- Heat-resistant ductile iron: SIMO D-5S
- High-strength and -toughness ductile iron: ADI
- Compacted graphite cast iron: CGI 400; CGI 450 (pearlite) and 350 (ferrite)

Heat Treatment
Relief annealing
- Max. temperature: 700°C
- Size: 7,200 × 2,500 × 1,700 mm
- Max. load: 35,000 kg

Impro offers a full range of sand casting solutions. If you would like to know more about our technology and sand casting process capabilities, please contact us today.