Decision nodes, exit strategies. Detailed explanation of the optimal timing and criteria for switching from bridge tooling to production tooling.
Bridge tooling is a transitional solution; the ultimate goal is to switch to production tooling. When to switch? This article provides a clear decision framework.
Bridge Tooling vs Production Tooling
| Dimension | Bridge Tooling | Production Tooling |
|---|---|---|
| Tooling Material | Aluminum / P20 | Hardened Steel (H13, S136) |
| Tooling Life | 5,000-20,000 cycles | 500,000+ cycles |
| Tooling Cost | 40-60% of steel mold | 100% |
| Lead Time | 2-6 weeks | 8-12 weeks |
| Precision | ±0.05mm | ±0.01mm |
| Suitable Quantity | 100-10,000 pcs | 10,000+ pcs |
Switch Timing Criteria
Signal 1: Stable Order Growth
When monthly orders exceed 70% of bridge tooling capacity for 3 consecutive months, consider switching.
Signal 2: Product Finalization
Design change frequency decreases, product specifications are stable, ready to invest in production tooling.
Signal 3: Bridge Tooling Approaching End of Life
When bridge tooling usage exceeds 80% of expected lifespan, begin preparing for switch.
Signal 4: Quality Requirements Increase
Customer requirements for precision and surface quality exceed bridge tooling capabilities.
Switch Strategies
Strategy 1: Parallel Development
Develop production tooling while bridge tooling is still in production. Zero downtime during switch.
Strategy 2: Phased Switch
Switch one mold cavity first, validate, then switch all. Reduces risk.
Strategy 3: Gradient Switch
Gradually increase production tooling output ratio based on order volume.
Exit Criteria for Bridge Production
Meet any of the following conditions to exit bridge production:
- Monthly orders > 10,000 pieces
- Bridge tooling lifespan > 80%
- Product finalized > 6 months
- Customer quality requirements exceed bridge capabilities
The mission of bridge tooling is to help you enter the market quickly; the mission of production tooling is long-term stable supply. Working together, they enable a smooth transition from 0 to 1 to 100.