Taming the shop floor

Introduction

It’s not easy to manage discrete manufacturing workflows, including make-to-order (MTO) and engineer-to-order (ETO).  

Sequential inter-dependent processes, coupled with tight deadlines and ongoing efficiency pressures, mean that just one misstep can cause the whole production process to come crashing down, like a chain of dominoes. To succeed you need visibility and precision baked into every stage, from materials planning and procurement, through to shop floor scheduling, assembly and quality control.  

That’s because, even with an experienced team behind you, operational vulnerabilities will destabilise production and put your business at risk. It’s only when the market changes, someone leaves, or you take on more orders and grow that the cracks start to appear. Just a single error on an inventory sheet or an employee being off sick or on holiday can lead to stockouts and delays. 

These problems are particularly damaging for small and mid-sized discrete manufacturers because bespoke orders have little or no margin for reworks or scrappage. 

When production goes off course managers have no choice but to step in and get things moving again. That could mean scrapping the current schedule and reprioritising jobs, or gathering volunteers for overtime. These interventions allow manufacturers to deliver customer orders on-time, in-full but it comes at a cost, both financially and in terms of employee morale and wellbeing. Constant firefighting also leaves little time for product and design innovation that strengthens your place in the market. 

The problem is that manual over-rides are accepted as part-and-parcel of working in a busy shop floor, rather than something that happens only in exceptional circumstances.  

If this is the case in your business, you’re far from alone. Unexpected downtime is common in many manufacturing and engineering firms, but at a cost of up to £24,000 per hour, even relatively short interruptions can have serious financial consequences. 

Understanding where these costs arise, and how to reduce them, enables manufacturers to protect and increase their margins, respond to external supply chain pressures and make better use of growing opportunities in sectors such as defence and aerospace. 

This report examines the causes of production instability and how better processes and digital systems can help manufacturers improve production control, keep jobs on schedule and manage costs more effectively.

The domino effect: What causes production instability?

Working in this industry, you’ll know how easy it is for a production schedule to go off course. You’ve probably also experienced the relief when everything gets back to normal. But this way of working isn’t sustainable over the long-term: it’s expensive because of unplanned overtime, scrappage and reworks, and customers will inevitably become impatient and dissatisfied if they have to wait longer than expected. You’re also likely to see the impact in your workforce with high turnover, general dissatisfaction and even burnout due to the volume and unpredictability of work. 

The causes of production downtime extend beyond operational failure. Supply chain pressures have been mounting in recent years due to geopolitical events, but internal inefficiencies make it difficult to respond to them effectively.  

Manual interventions are a necessary short-term fix for these issues, but they only address the symptoms rather than the cause. Below are five areas of production – or dominos – which are less effective because of inefficient manual processes.  

5 signs of instability in your business 

1. Quotes don’t reflect delivery costs and profit margins  

   When engineers and sales teams are working on different systems, the quote given to a customer may be inaccurate from the start. Information that is rekeyed from one system to another, especially from CAD drawing and complex BOMs, carries a higher risk of inaccuracy. Even the smallest missing or incorrect details can impact costing and resources, making the job less profitable overall. 
    

2. Frequent bottlenecks and stockouts 

   Material Requirements Planning (MRP) relies entirely on the accuracy of BOMs and stock levels.  
   When purchasing teams receive corrupted part lists or rely on manually-created inventory  logs that don’t reflect actual warehouse stock, they may order too much or too little. Lack of visibility could also mean the type or quantity of raw materials/components is incorrect, or their lead times are too long.  
   
   On the other hand, manufacturers may maintain too much safety buffer stock just in case, tying up tens of thousands of pounds in working capital and impacting cashflow. 
   
   It’s only when the actual production date arrives and the warehouse picks the job that  operators discover missing raw materials, obsolete fittings, or stockouts. The purchasing team is forced to place emergency purchase orders at premium prices and pay expedited freight fees, driving up direct material costs before production has even begun. 
    

3. Production schedules go off course 

   Production managers try to carefully sequence jobs using finite capacity whiteboards or spreadsheets. However, these manual scheduling methods are based on assumptions rather than live shop floor availability (machines, people and materials). They are also too rigid to respond to change, whether that be missing materials, incorrect tooling, or unverified CAD drawings, causing the whole schedule to collapse. 
   
   Machine tools sit idle while operators wait for new instructions or for missing raw stock to arrive. This reactive rescheduling creates severe machine bottlenecks, increases unplanned downtime, and destroys the logical sequence of production. The shop floor descends into reactive firefighting as managers try to reprioritise and ensure that resources are diverted to any job, rather than thinking more strategically about the most valuable ones. 
   
   Equipment failures and unplanned maintenance also disrupt a fragile production sequence. Time pressures mean that proactive maintenance falls down the list of priorities, even though a machine failure comes at a high cost when managers have to reschedule jobs, move work to another machine or arrange additional shifts to clear the backlog.  
    

4. Manual intervention is normalised 

   When machine operators and assembly technicians are confronted with conflicting priorities, unintuitive software interfaces, or paper job packets containing outdated revisions, it erodes confidence in their employer. To keep production moving and meet their daily output targets, operators sometimes revert to "shadow processes" – the unwritten tribal rules, notebooks, and spreadsheets they know well.  
   
   Skills shortages make these problems harder to manage. Around half of manufacturing SMEs in a recent survey reported experiencing skills gaps, recruitment shortages or both. When experienced staff are unavailable, clear production records and standardised instructions enable newer members of staff to see what needs to happen next. 
    

5. Scrappage and reworks rates are high 

   Something as simple as a typo in the part specification, outdated information or units recorded in a non-standardised format can lead to costly reworks. Another problem is that when designs or orders are updated on one system, whether it be a single piece of software or a spreadsheet, the changes aren’t automatically reflected in other areas of the business. As a result, teams can end up working from out-of-date drawings, with products potentially needing significant reworks (or having to be scrapped) later on.  
   
   Parts are machined to wrong tolerances, sub-assemblies fail to fit together during final integration, and valuable skilled labour hours are wasted rectifying preventable errors. On an £8 million turnover facility, these preventable shop floor errors and quality reworks can cost £40,000 or more in direct annual costs. 

It’s not just the cost of reworks that impact commercial performance. It also affects a business’ ability to secure new and repeat business, prevent cash flow challenges and prevent too much stock piling up. Paying overtime, as well as costly agency staff, also hits margins hard. According to our own research, if five employees were to work an extra hour every weekday, the overtime costs alone would amount to over £26,000 a year.  

Keeping human intervention costs down 

Manual intervention is the cause of production instability – and it's often masked by diligent production managers using processes that are no longer fit-for-purpose.  

They can redesign a production schedule, allocate new jobs to people and machines, or ring a supplier or customer to smooth over a delay. However, their actions don’t get to the root of the issue. The time becomes a premium your business has to pay and leaves you vulnerable because they may not be there to step in every time.  

Digitisation, including automation, is a well-known solution to inefficiency – speeding up processes, enabling 24/7 operations and reducing the risk of human error. It enforces standardisation, so information is recorded clearly and correctly. Connected systems on the shop floor and back office give you full visibility of any potential bottlenecks or shortages, and allow you to automatically allocate resources according to priority and last-minute changes. 

But it’s not just a case of moving from paper to digital, without rethinking your processes too. Digitisation demands a new way of working that is data-led, dynamic and forward looking. There will still be times when an experienced manager has to take remedial action, but this shouldn’t be business as usual.  

According to recent figures from Make UK, 65% of manufacturers are planning major investment in digitalisation and AI over the next five years. For those reviewing their production processes, their investment needs to address specific operational problems, such as inaccurate stock records, limited visibility of job progress or unreliable production schedules. Choosing systems that connect these areas can help teams access consistent information when they need to make decisions. 

Impact of human intervention vs. digitisation

Just as it’s important to avoid digitising bad processes, it’s also important to remember that digitisation is a broad term that encompasses everything from introducing an ERP to AI-enabled technologies that support predictive maintenance and forecasting, and robotics. 

An ERP is the foundation for your digital floor, giving you a single source of information to make decisions, automate what you can and ultimately increase production stability. Modern cloud-based solutions are designed to be user-friendly and deliver value from the start – but choosing the right one is critical. A failing ERP is just as damaging as not having one in place at all, because your employees could end up spending more time on admin not production. If your ERP is generic, ill-suited to discrete processes or simply old and slow, you are likely to be losing valuable hours every day that could be regained if you had access to a more efficient platform. 

Common signs of a failing ERP include:  

• Unreliable data: Staff aren’t inputting data correctly or reliably, instead reverting to spreadsheets and other shadow processes. That means reports don’t align with the reality of production and there’s a loss of trust. 
• Poor user experience: Linked to the point above, software with a poor user experience and lengthy training requirements is off-putting for staff so they won’t engage with it. 
• Operational chaos: You’re still experiencing critical operational challenges like bottlenecks and stockouts. 
• Poor ROI: Staff aren’t using all the features so they become an unnecessary monthly expense. Or the system doesn’t have the features you need so you have to pay more for customisation. 

 To see if your current ERP is hitting the mark, take the ECI ERP Audit. 

Secure your dominos 

Replacing fragmented software and manual workarounds with a unified, industry-specific ERP architecture enables discrete manufacturers to avoid the domino effect and achieve production stability.  

An ERP developed specifically for SME discrete manufacturers, machine shops, and custom fabricators, provides the structure required to eliminate operational domino collapses. By connecting sales, design engineering, procurement, work preparation, shop floor scheduling, assembly, and financial job costing on a single platform, you can address any issues quickly and proactively before they escalate. 

5 ways Ridder iQ, an industry-specific ERP can help 

1. Automated CAD/PDM integration and BOM creation 

   Manage multi-level BOMs drawing attachments, and material specifications by automatically transferring data from design software without manual rekeying. Automatic updates to designs are reflected across purchasing, inventory, and shop floor terminals, so everyone has the correct information to work from.
    

2. Real-time inventory control and automated MRP 

   Link inventory tracking and Material Requirements Planning straight to live sales orders and production schedules. You’ll be able to calculate material lead times, safety stock requirements, and trigger purchase orders automatically while retaining full oversight. Stock movements are also logged in real-time with mobile barcode scanners and shop floor terminals, ensuring accurate stock levels. 
    

3. Visual capacity planning and real-time scheduling 

   Replace static and hard-to-update spreadsheets with visual drag and drop production schedules, so you can easily accommodate changes such as machine breakdowns, urgent orders and staff absences. This visibility also allows you to plan your resources more effectively, so you can maximise productivity while being confident you can deliver. 
    

4. Digital shop floor control and live WIP tracking 

   Rather than relying on guesswork and static records, Ridder iQ enables teams to input critical information and check progress from their workstations. They’ll also receive clear instructions that standardise working processes and enforce good practice. 
    

5. Live job costing and pre- and post-calculations 

   Live financial tracking allows you to monitor profit margins from order to delivery. It automatically compares real time expenses against the original quote, flagging up any overspend, which means you can take action before the job is completed.

Ridder iQ in action: Improving production visibility at UMD 

Based in Newark, Nottinghamshire, Ultimation Direct (UMD) is manufacturer of gates, barriers, turnstiles and bespoke access control systems, found that its existing project management software could no longer meet its stock control needs or track complex manufacturing jobs across departments. 

The team needed better visibility of materials and job progress, with less manual effort to keep production moving. With Ridder iQ’s Shop Floor Control module, production staff can now see their planned tasks on screen and update job progress as work moves through the factory. Managers can now observe work-in-progress in real time and ensure their teams are working as efficiently as possible. 

Getting the implementation right 

Implementing an ERP is as much a human exercise as a technological one. Even the right software can fail to deliver its full value if existing inefficiencies are carried into the new system, employees aren’t supported through the transition, or the project loses focus or creeps in scope. Without effective change management, the technology can become a domino itself, destabilising other elements of the business in unexpected ways. 

To ease the transition, it’s important to have a clear roadmap and work with a vendor who can guide you through the process. First, identify the manual workarounds, duplicated tasks and outdated processes that have become embedded in everyday operations, and ask whether they genuinely deliver value. Digitising an inefficient process can amplify it across the business so ensure you don’t bring them into the new system. 

The next step is to clean and standardise your data. Look for duplication, units measured inconsistently, inaccuracies, ensuring that all BOMs reflect the latest requirements. This supports effective decisions and builds trust within the team. 

Good implementation projects have clear ownership internally, so assign a senior person to advocate for the software and ensure that departments are working together towards a common goal. An internal champion – or super user – can help employees within different teams, answering questions and helping them get the most from the software. 

Last, make sure you continually measure ROI before and after implementation against KPIs. Are overtime and scrappage costs down, and are you seeing faster throughput or lower purchasing costs? 

Conclusion 

There is no single cause of operational instability – and factors outside of your control like supply chain volatility will always require an expert eye and steady hand to step in. But routinely relying on human intervention to rescue falling dominos puts your business under unnecessary strain, impacting cashflow and margins, worker trust and morale, innovation, and customer satisfaction.  

Instability on the shop floor is rarely caused by isolated issues. More often than not, it’s structural failings that come from slow, outdated and inconsistent processes. Sometimes it’s down to spreadsheets and paper-based systems but it could also be an old or unsuitable ERP. The good news is that modern ERP software, designed for your industry and properly implemented, gives your teams the tools and insight they need to make better decisions, anticipate problems and maintain stability. 

Take the 2-minute scan to identify weaknesses in your business and prioritise improvements.