Monday, A shift. Two operators have not turned up, a mould change is booked on the 350-tonne machine and a buyer's truck is due at four. The lead pulls an inspector onto a press, asks a packer to stay on into B shift and rings a helper who quit last month. By evening the presses have run. Nobody can say with confidence who worked which hours, and the wage sheet will be argued over for a week.
Plastics plants run long, rotating shifts with thin margins of skill. Without written rules, every shortfall is patched by whoever shouts first, and the patches differ from lead to lead. Shift and attendance rules for plastic manufacturing can fit on a single folded sheet. They must be plain enough that a drowsy lead at dawn applies them exactly as the day lead does at noon.
Choose the shift pattern on purpose
Most moulding shops choose between three eight-hour shifts and two twelve-hour shifts. Twelves need fewer people and fewer handovers, but yawning at the trimming bench after midnight is real. Eights spread the load and suit plants where presses can idle on a Sunday. Pipe, sheet and film lines that cannot stop without hours of off-grade output need staggered weekly offs, so the crew changes while the screw keeps turning. Rotate on a fixed cadence, weekly or fortnightly. Avoid parking the same faces on permanent nights.
Set a minimum crew for each machine group
Machine group, such as the toggle presses, the big hydraulic presses, blow machines, the pipe line, the film line or the assembly benches.
Minimum per shift: setter or line leader, machine operators, trimmers or packers, inspector.
Named stand-ins who may fill each role on this group.
Breaks and relief: who relieves the winder, coiler, cutter or press operator for meals.
What stops first if the crew is below minimum, in order.
Who decides to stop a machine, and who must be told.Pin each card beside the attendance board, next to the magnet strip of names. When the morning roll call shows a gap, the lead reads the card instead of improvising.
Rules that hold on a busy day
- Absence call. Anyone who cannot come rings the shift lead before their shift begins, not halfway through it. An unannounced absence is logged separately from a notified one.
- Punching. Everyone punches in and out at the biometric terminal, leads and setters included. A forgotten punch goes on a regularisation slip within two days.
- Lateness. One grace rule for late arrival, applied on every shift. Leads do not invent private grace periods for friends.
- Swaps. Two people may swap a shift if both sign a swap slip, both hold the same skill on the crew card and the lead approves beforehand.
- Double shifts. Only from the overtime rotation list, only with a break between, and never two nights back to back.
- Relief on continuous lines. A named relief person covers the winder, coiler and saw for meals, and that relief time appears on the roster.
- Leave. Planned leave is requested a fixed period ahead and approved against the crew card, not by mood.
The cover ladder
- 1
Floater on the shift
A relief operator rostered for exactly this job, if the plant keeps one. It is the cheapest cover and the least disruptive.
- 2
Cross-trained hand from a lower-priority machine
Borrow someone from a press lower down the priority list, provided the crew card names them as a stand-in for that group.
- 3
Overtime from the rotation list
Ask whoever is next on the list, not the same obliging face. Jot down the request, the reply and the hours.
- 4
Standby list
Ring trained locals or former staff on the plant's own standby list, starting with whoever was inducted most recently.
- 5
Idle the lowest-priority machine
If cover still falls short, switch off the press or line at the bottom of the priority list, purge it properly and tell planning at once.
- 6
Log every step
Who was absent, who covered, from which machine and for how many hours. This log is what the wage sheet is checked against.
Sequence is half the value. When every lead climbs the same ladder, operators stop suspecting that overtime and transfers go to favourites.
From the punch to the wage sheet
Attendance only helps if it reaches wages cleanly. Fix a monthly cut-off. Have one person reconcile the biometric data with swap slips, overtime logs and regularisation slips before that date. A cluster of missed punches on one shift usually means a queue at the terminal or a minibus that arrives late, and both are worth a look. A form for correcting missed punches makes the correction route visible to everyone.
Rolling the rules out
Explain the rules at each shift huddle in the language the crew speaks, with the crew cards on the wall. Run them for a month as a trial and collect the cases that did not fit. Then patch the gaps and print the final version. GullyHR's attendance and rostering service covers this end to end. Press shops can compare notes with the page on rotas for press shops. Continuous lines are covered under shift cover where extruders never stop. The wider people picture sits on our plastics industry overview.
