Direct answer
Measure OEE at the constraint. If losses are operational, capacity is recoverable without major capital. If the constraint is physically saturated, evaluate debottlenecking, added shifts, a parallel cell, or a new line in that order of capital intensity.
How this problem shows up
- Orders are refused or lead times are extending
- One operation is always busy while others wait
- Overtime and weekend shifts have become structural
- Nameplate capacity far exceeds real output
- Every department claims to be the bottleneck
Engineering responses
Recover hidden capacity
OEE loss analysis, changeover reduction, micro-stop elimination. Lowest capital, fastest.
Debottleneck the constraint
Targeted capital at one operation — often 10–20% of full line cost.
Add a parallel cell
Duplicate the constraint operation; scalable and relocatable.
Add a line or plant
Justified when demand is committed and the current site is saturated.
Decision matrix
| Option | Typical capital | Time to output | Risk |
|---|---|---|---|
| Operational recovery | Low | Weeks | Low |
| Debottlenecking | Moderate | 3–9 months | Moderate |
| Parallel cell | Moderate–high | 6–12 months | Moderate |
| New line / plant | High | 12–30 months | High |
Capacity options by capital intensity
Engineering and project considerations
- Constraint moves after every improvement — plan the next constraint deliberately
- Shift pattern changes can be cheaper than capital but depend on labour availability
- Utilities, effluent and logistics may cap capacity before machines do
- Demand certainty determines how much capital risk is acceptable
- Capacity added without quality capability creates rework, not output
What to prepare before engaging engineering companies
- OEE data per operation for at least 8 weeks
- Demand forecast with confidence range
- Utility and space headroom assessment
- Cost per unit at each candidate capacity level
What to measure
Frequently asked questions
Should we buy a machine or improve operations first?
Improve first unless the constraint is physically saturated. Buying capacity around an operational loss embeds the loss permanently.
How is added capacity financed?
Through leasing, equipment finance or project facilities. Lenders assess demand evidence and the acceptance milestones of the capacity being added.
Related engineering knowledge
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Independent, buyer-side and supplier-neutral
Global B2B Group does not sell machines and does not represent equipment manufacturers. This material is published to help industrial organisations define the problem, prepare the specification and structure the investment before engineering partners are selected.