Cookie settings: We use cookies to analyze site traffic and optimize your experience. Read our Privacy Policy for details.
Direct Definition: Lead time is the complete duration required to deliver an order to a customer, encompassing order intake, raw material procurement, queue delays, active manufacturing cycle times, quality inspection, and shipping.
Lead time is one of the most critical competitive factors for custom job shops and small manufacturers. Customers demand fast, reliable turnarounds, making accurate lead time estimation essential for winning and retaining contracts.
Components of Manufacturing Lead Time
Total manufacturing lead time consists of several distinct stages:
- Order Entry and Engineering: Reviewing drawings, preparing CAD/CAM files, and issuing work orders.
- Material Procurement: Sourcing raw stock, tooling, or outsourced components from suppliers.
- Queue and Setup Time: Waiting in line for an available machine slot and setting up fixtures.
- Run Time: Active machining, cutting, bending, or assembly.
- Inspection and Dispatch: Quality assurance checks, packaging, and courier transit.
Shortening Lead Times with Visual Boards
In most machine shops, up to 80% of total lead time is spent waiting in queues between operations rather than active cutting. Digital visual boards expose these queue delays instantly, enabling managers to balance workloads across work centres and compress overall customer lead times.
Frequently Asked Questions
- What is lead time in production?
- Lead time is the total calendar time from when a customer places an order to when they receive the finished goods.
- Why are shop floor lead times often long?
- Long lead times are typically caused by parts waiting in queues between work centres, delayed material deliveries, or slow setup changeovers.
- How does visual scheduling reduce lead time?
- Visual boards highlight idle waiting times and bottlenecks in real time, allowing schedulers to pull urgent jobs forward and balance machine queues.