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Paper Sprue Runner for Lost Die Casting

Are you in search of an efficient and eco-friendly solution for your lost die casting process? Look no further than SEFU paper sprue runner system.

  • High-Temperature Resistance
  • Lightweight and Easy to Handle
  • Customizable to Any Casting Application
  • Environmentally Friendly Materials
  • Resistant to Corrosion and Thermal Shock Resistance

Paper Sprue Runner for Lost Die Casting: High-Temperature Casting System Solution

SEFU offers thermal insulation solution for high-temperature metal casting: our paper sprue runner system. Designed for use in lost die casting processes, our sprue runners are made from a special blend of refractory fibers and binders that can withstand temperatures up to 1640℃ – making them ideal for producing high-quality cast iron auto parts and other components.

With straight pipes, pouring cups, tees, elbows, and other fittings available, our sprue runner system offers a wide range of customization options to suit any iron casting application.

paper sprue runner lost foam casting application

sprue gate runnercasting runner pipe

Item Size Diameter L L1 D d
JDZ-25 Φ25*300 Φ25 300 30 30.2 27.3
JDZ-30 Φ30*300 Φ30 300 30 35.2 32.4
JDZ-35 Φ35*300 Φ35 300 30 40.8 38
JDZ-40-32 Φ40-32*300 Φ40 300 30 46.6 35.4
JDZ-40 Φ40*300 Φ40 300 30 46.6 43.4
JDZ-50 Φ50*300 Φ50 300 30 57.7 54
JDZ-60 Φ60*300 Φ60 300 30 67.7 64
JDZ-70 Φ70*300 Φ70 300 30 79.5 75
JDZ-80 Φ80*300 Φ80 300 30 90.6 85.5
JDZ-90 Φ90*300 Φ90 300 30 103.2 97
JDZ-100 Φ100*300 Φ100 300 30 113.3 107

paper runner elbowpaper runner elbow

Item Specification L L1 H h D d
JDW-25 90° 68 30 68 30 30.3 30.3
JDW-30 90° 73 30 73 30 35.8 35.8
JDW-35 90° 80 30 80 41.2 38
JDW-40-30 Variable Diameter Tube 72.5 30 90 46 32.5
JDW-40 90° 90 30 90 46.9 43.4
JDW-50 90° 104 30 104 58 54
JDW-50-30 Variable Diameter Tube 70 30 87 58.1 32.4
JDW-60 90° 116 30 116 68.7 64
JDW-70 90° 130 30 130 80 75
JDW-80 90° 140 30 140 91.2 85.5

paper pouring cuppaper pouring cup

Item Specification H D d Remark
JBP-130-40 Φ130 x Φ40 130 130 40 Eccentric
JB-130-40 Φ130 x Φ40 130 130 40 Cone
JB-140-50 Φ140 x Φ50 115 140 50 Cone
JB-160-50 Φ160 x Φ50 150 160 50 Cone
JB-160-60 Φ160 x Φ60 120 160 60 Cone
JBP-200-40 Φ200 x Φ40 135 200 40 Eccentric
JBP-200-50 Φ200 x Φ50 135 200 50 Eccentric
JBP-200-60 Φ200 x Φ60 135 200 60 Eccentric
JBP-200-60 Φ200 x Φ60 220 200 20 Eccentric   Thickening
JBP-200-70 Φ200 x Φ70 160 200 70 Eccentric   Thickening
JB-260-70 Φ260 x Φ70 280 260 70 Round
JB-260-90 Φ260 x Φ90 280 260 90 Round

paper runner joint pipePaper sprue joint for foundry

Item Size L L1 D d
JDJ-30/30 Φ30-30 50 25 35.2 35.2
JDJ-40/40 Φ40-40 50 25 46.6 46.6
JDJ-40-40 Φ40-40 50 25 46.5 43.4
JDJ-40-35 Φ40-35 75 30 46.9 38
JDJ-40-40*20 Φ40-40×20 60 22 47.3 40×20
JDJ-50/50 Φ50-50 50 25 58 58
JDJ-50-50 Φ50-50 50 25 58 54
JDJ-50/40/30 Φ50-40-30 81 25 58.1 32.4
JDJ-50/30 Φ50-30 80 30 58.1 32.4
JDJ-60/60 Φ60-60 50 25 68 68
JDJ-70/70 Φ70-70 60 30 80 80
Product name Item Size L L1 H h D d
Reducing Tee JDS-50/30 Φ50-30-30 125 32 80 30 58.5 32.4
JDS-50/35 Φ50-35-35 148 40 80 30 58.1 38
JDS-60/50 Φ60-50-50 155 18 103 30 68.1 54
JDS-70/50 Φ70-50-50 140 24 92 30 80 54
JDS-90/70 Φ90-70-70 180 34 122 30 105 75
JDS-30/70/70 Φ40(30)-70-70 100 26 130 50 40.6 80
JDS-50/70/70 Φ50-70-70 140 38 110 28 54 79.5
JDS-40/60/60 Φ40-60-60 125 35 117 48 43.7 68
JDS-30/40/40 Φ40-40-30 100 28 90 43 32.5 46
JDS-30/50/50 Φ30-50-50 105 35 83 33 32.4 54
Equal Tee JDS-30/30/30 Φ30-30-30 98 30 70 30 35.5 35.5
JDS-35/35/35 Φ35-35-35 100 30 73 30 41.7 41.7
JDS-40/40/40 Φ40-40-40 102 25 82 30 47 43.4
JDS-50/50/50 Φ50-50-50 124 32 96 30 58.7 54
JDS-60/60/60 Φ60-60-60 106 17 103 30 68.1 64
JDS-70/70/70 Φ70-70-70 140 28 112 30 80.5 75
Reducing Cross JD4T-50/30 Φ50-50-30-30 120 30 104 30 57.5 36

Various Specifications and Shapes

SEFU paper sprue runners come in a range of sizes to suit your specific casting requirements, with options including straight pipes, pouring cups, three-way and four-way connector tubes, curved tubes, and more. Their configurability makes them an ideal option for complex castings or for molds that require multiple sprue runners.

casting runner
application of casting runner

Customizable to Any Casting Application

With a variety of fittings and sizes available, our sprue runner system can be customized to suit any casting application – whether you’re making small parts for automotive or aerospace industries, or larger components for industrial machinery.

Advantages of Paper Sprue Runners

The most significant advantages of our paper sprue runners are their flexibility and ease of cutting. They can be cut to any length, which is particularly useful for large molds that require extended sprue runners. This flexibility reduces waste generated by offcuts while providing high-quality results.

Their joint bonding system ensures a secure and solid connection without leaks or cracks, enabling the molten metal to flow evenly and smoothly.

sprue runner for casting

Related Products

If you are interested in purchasing paper sprue runners or other casting materials for your casting process, contact us – our helpful team is always available to guide you through the sizing and selection process, ensuring you have the perfect refractory casting materials for your casting needs. Make SEFU your reliable supplier.

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