
Introduction
In today’s precision manufacturing landscape, a bi injection mold solution must deliver seamless multi-material integration and high throughput. At Longterm, our 2k mold tooling expertise meets these demands with robust double injection mould systems capable of over-molding hard and soft polymers in a single cycle. By leveraging rotation bi-injection mold designs, we reduce cycle time by up to 20% and scrap rates by 25%.
Key Technical Specifications
1.Cavity & Core Precision
bi injection mold cores (±0.01 mm) and cavities engineered for identical first-shot dimensions
double injection mould female cavities with distinct geometries for two-color components
two shots molds with matched core-to-cavity clearance (0.1–0.3 mm) for hermetic seal
2k mold tooling ensures consistent part weight ±0.5 g across runs
2.Rotational Alignment
rotation bi-injection mold with 180° central rotation block
precision guide pins and locator blocks (tolerance ±0.01 mm) in two shots molds
rotation bi-injection mold interlock system (response ≤0.3 s) for safe multi-stage operation
3.Structural & Installation Parameters
double injection mould plate thickness ≥170 mm to withstand 100–150 MPa injection pressure
KO hole spacing 200 × 200 mm for ejector alignment in bi injection mold platforms
two shots molds plated for 10 L/min coolant flow, ΔT ≤3 °C
4.Automated Demolding & Temperature Control
2k mold tooling with self-releasing nozzle for automatic sprue separation
two shots molds hot runner manifold with insulation sleeves (±5 °C melt stability)
bi injection mold temperature zones: PC at 280–300 °C; TPE at 180–200 °C
Performance & Benefits
1.Efficiency Gains
bi injection mold cycle times: 15–30 s
double injection mould throughput increased 18% via conformal cooling
two shots molds reduce secondary assembly by 100%
2.Quality & Reliability
rotation bi-injection mold FEA-verified seal strength at ≥80 MPa
2k mold tooling mean part concentricity ±0.02 mm
bi injection mold scrap rate ≤1.5%
3.Case Study: Automotive Sensor Housings
A Tier-1 OEM adopted our double injection mould solution and rotation bi-injection mold design, producing over-molded sensor housings with leak rate ≤1×10⁻⁶ Pa·m³/s. With two shots molds, assembly time dropped by 30% and yield improved to 99.2%.
Selection Guide
For high-volume multi-color grips: choose bi injection mold tooling with hardened steel cores and balanced cooling channels.
For medical device seals: specify double injection mould plates with baffle cooling (cycle time cut by 20%).
For elastomer-to-hard polymer over-molding: leverage 2k mold tooling with sequential injection zones and temperature control.
For complex geometries with rotation: implement rotation bi-injection mold design with ±0.01 mm alignment accuracy.
Why Our 2k Mold Tooling?
Over 200 successful bi injection mold and double injection mould installations
In-house FEA and mold flow analysis validating two shots molds performance
Dedicated R&D on rotation bi-injection mold safety and efficiency
Cost-effective 2k mold tooling solutions with ROI payback in under 12 months
Contact for Inquiries
Longterm Manufacturing Solutions Ltd.
Tel: +86 156 0239 2025
Email: longterm@longterm-mold.com
Website: www.longterm-mold.com
This specification and selection guide ensure your bi injection mold, double injection mould, two shots molds, 2k mold tooling, and rotation bi-injection mold projects meet the highest standards of precision, efficiency, and cost-effectiveness.

