Paper Sprue Runner for Precision Casting
Looking for an efficient and sustainable solution for your lost foam and precision casting needs? Explore the SEFU paper sprue runner system, ideal for producing cast iron components.
- 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 pouring cups, runners, elbows, tees, connectors, and filter boxes, our sprue runner system offers a wide range of customization options to suit any iron casting application.
- Pouring Straight Pipe
- Pouring Elbow
- Casting Pouring Cup
- Pouring Sprue Connector
- Pouring Runner Tee
| 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 |
| 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 |
| 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 |
| 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.
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.
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.
