Job work and contract labour peaks: planning people for a lumpy order book

An OEM schedule doubles for two months. A tender for hospital beds is won with a tight delivery date. A harvest season pulls in orders for rotavators and seed drills all at once. Many plants live with an order book like this: sleepy for weeks, then crammed. The reflex is a frantic call to the labour contractor and a fortnight of double shifts.

That reflex can work, but it usually comes late and in a scramble. The plant ends up with strangers on its presses, a swelling reject bin at final inspection and a weary regular crew. A little foresight before the rush prevents most of that.

• Overtime from your own people. Fast and skilled, but limited by fatigue and the caps you set.
• Contract crews under your supervision. Extra hands on your floor, supplied and paid by a contractor, working to your methods.
• Job work. A whole operation sent out to another unit with its own people, such as plating, heat treatment, powder coating, turning or stitching.
• A mix. Most peaks need all three, in a planned proportion rather than whatever is available that week.

Some work should never move to an unfamiliar hand. Setting a progressive die, proving a CNC programme, tapping a furnace, final inspection and anything with a customer audit trail belong to your own trained staff. Loading, unloading, packing, fettling, deburring, kitting and simple assembly suit contract crews once inducted. A self-contained operation, like zinc plating or gear hobbing, may go out as job work. The vendor needs spare capacity and a clean track record.

• Ask for a sample lot first. Run it through your own incoming inspection before trusting the vendor with volume.
• Look at their gauges. Calibration tags, thread plugs, coating thickness meters, hardness testers.
• Ask who runs their night shift. A sound day crew and an unsupervised night crew produce two different vendors.
• Check whether they sub-contract again. Work passed on a second time is work nobody is watching.
• Agree packing, transport and rejection terms. Who pays for sorting, rework and a returned lorry.

Different groups feel the swing in different ways. OEM schedules for auto component suppliers lurch faster than any hiring plan. Fabrication and press shops take on casual welders' helpers and grinders with every spike, then let them drift away. Device makers deal with tender and export bursts, covered in our notes on medical devices and equipment.

1. 1

   Turn orders into station hours

   For the next eight to twelve weeks, convert confirmed and likely orders into hours per station, per week. Planning or PPC usually has the cycle times.

2. 2

   Set your own capacity against it

   Hours your trained people can give, after weekly offs, leave and a normal absence allowance, without breaking overtime caps.

3. 3

   Mark the gap by station

   A gap on packing is easy to fill. A gap on the press brake or the CMM is not.

4. 4

   Choose the fill for each gap

   Overtime within caps, a contract crew, job work, or moving your own multi-skilled people across lines.

5. 5

   Book contractors and job workers early

   Agree numbers, skills, start and release dates, and rates before the peak, while you still have a choice.

6. 6

   Induct and check before the first shift

   Safety induction, a station check and a skill matrix entry for every contract hand, in a band marked with the contractor's name.

Week and station: ________.
Order load in hours: ________. Own trained capacity in hours: ________.
Gap in hours: ________.
Fill chosen: overtime / contract crew / job work / internal transfer.
Contractor or job worker named: ________. Headcount agreed: ________.
Induction and station check date: ________.
Supervisor responsible for the crew: ________.
Release date and gate pass return: ________.

Contract hands often sit outside the plant's files, and that blind spot is where both injuries and unpaid-wage rows begin. Keep a contractor register and a list of workers per contractor. Issue gate passes tied to that list. Reconcile gate attendance with the contractor's bill every month. Ask the contractor for bank transfer records showing the crew was actually paid. A short headcount and manpower plan makes the peak visible beside your own staff.

Plan the release at the start. Collect gate passes, PPE and tools against the issue list. Close each contract hand's skill matrix entry with a note on whether you would take them again. Compare the peak's rejects and near misses by crew. That ledger makes the next rush easier, because you already know which contractor, and which individual packers or fettlers, were worth recalling. For the human side of large temporary crews, see how should I manage workers added for a large order.

Fill one manning sheet for your next known peak, even a rough one. The stations with the biggest gaps tell you where to train your own people in the quiet weeks. Our workforce planning work builds that sheet into a routine, as part of our manufacturing people practice. To plan for your own order book, share your situation with us.