Production cycle definition

What is a Production Cycle?

The production cycle is comprised of all activities related to the conversion of raw materials into finished goods . The cycle has several distinct components, involving the design of products, the development of a bill of materials, the incorporation of products into a production schedule, manufacturing activities, and a cost accounting feedback loop. These areas are usually managed by four different departments – the engineering, materials management, production, and accounting departments, respectively. The full production cycle contains the following activities.

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Step 1 - Design the Product

The engineering department uses an iterative process to develop product designs. This process requires input from the accounting department concerning the costs of proposed product components, while the marketing department advises on the product features needed. The industrial engineering group provides input about how new products can be designed to make them easier and less expensive to manufacture. The engineering staff incorporates a targeted selling price and profit margin into its design work, in a process called target costing , to design new products that will be assured of earning a reasonable profit.

Step 2 - Develop a Bill of Materials

Once a product design has been finalized, the engineering staff creates a bill of materials , which itemizes every component in the product. It also works with the industrial engineering group, typically through several production runs, to develop a labor routing , which states the estimated amount of labor that will be required at each production workstation in order to complete the product.

Step 3 - Develop a Sales Forecast

A sales forecast from the sales department is used as an input to the development of a production plan, which states the number of units to be produced, as well as the timing for when each batch of the product will be initiated. Based on this schedule, the system issues purchase requisitions to the purchasing department to obtain the necessary raw materials.

A sales forecast is usually created in conjunction with the marketing department, which develops promotional campaigns to enhance expected sales. These campaigns need to be scheduled properly, so that goods are available for purchase when a campaign begins.

Step 4 - Produce Goods

The materials management staff releases job orders into the production department in accordance with the requirements of the production plan, and schedules direct labor staffing based on the labor routing information for each product on the shop floor. Completed goods are either shipped immediately to customers or stored in the warehouse as finished goods.

Step 5 - Compile Cost Summaries

The cost accounting staff compiles cost summaries for each batch completed by the production group, which it provides to both the engineering manager and production manager. This information is needed to spot variances from expectations, which could lead to design changes or alterations in the work instructions used on the shop floor. These cost summaries may incorporate activity-based costing , which does a better job of allocating overhead to products.

How to Streamline a Production Cycle

There are several ways to streamline a production cycle, which are noted below:

  • Streamline workflow processes . Eliminate unnecessary steps and redundancies in the production process to improve efficiency. Use process mapping and lean principles to identify bottlenecks and delays. Standardizing operations also reduces variation and speeds up execution. The goal is to create a smoother, faster production flow.

  • Improve equipment reliability . Implement preventive maintenance programs to reduce machine downtime. Ensuring equipment is consistently operational minimizes production interruptions. Upgrading to more efficient machinery can also shorten cycle times. Reliable tools mean fewer delays and faster throughput.

  • Train employees . Well-trained employees perform tasks more quickly and with fewer errors. Cross-training allows staff to switch roles when needed, reducing idle time during bottlenecks or absences. This flexibility supports continuous flow in production. Skilled labor is critical to sustaining shorter cycle times.

  • Implement just-in-time (JIT) inventory management . JIT reduces the waiting time for materials by aligning inventory arrival closely with production needs. This minimizes storage delays and encourages better coordination with suppliers. It also reduces clutter and improves factory layout. Timely inputs support uninterrupted production.

  • Adopt automation . Automation speeds up repetitive or labor-intensive tasks while increasing consistency. Technologies such as robotics, sensors, and software can streamline data collection and process control. Automation also reduces human error and fatigue. Faster, more precise operations lead to shorter cycles.

  • Optimize production scheduling . Efficient scheduling minimizes idle time, overproduction, and overlapping tasks. Using production planning software helps allocate resources more effectively and sequence jobs for maximum output. This improves coordination across departments. A well-organized schedule keeps production moving steadily.

  • Reduce setup times . Using techniques like SMED (Single-Minute Exchange of Dies) minimizes time lost during equipment setup and product changeovers. Fast transitions allow more flexibility in production without extending lead time. This also increases overall machine availability. Quick setups mean more time for actual production.

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