How should press and furnace shifts be handled?

When the day crew clocks in at six, the hammer team pulls on leather aprons and calls for the first billet. The night heater has already left. Nobody mentions that the press sat idle for two hours after midnight while a die was changed, or that he banked the pusher furnace low to save fuel. The first billets look bright enough at the discharge door. They are under-soaked inside, and the morning's crankshaft forgings come out with laps that only show after shot blasting.

No single person failed. The shift change did. In a forge, the furnace and the press run on different clocks, and the roster has to respect both.

Stagger shift starts around the furnace. Put one named lead on each shift with clear authority. Hand over at the machine with a short written card rather than a shouted word at the gate. Share nights and weekend furnace duty by rota among trained people, and pay for them in a way everyone can see. Every item there is settled by people rules. That makes shift design part of managing the workforce, not only part of production planning.

A gas-fired or oil-fired billet furnace cannot be switched on at the gate and used five minutes later. It needs time to reach heat, and billets need time to soak through. Heat treatment furnaces for normalising, hardening and tempering often stay lit overnight, since a hardening cycle cannot pause midway. Induction heaters start faster, yet the coil, the water cooling and the feed still need a check before the first billet. Roll forming and deep drawing lines have no furnace, but long coil runs and costly changeovers push them toward continuous shifts too.

• Heaters first: the furnace hand arrives ahead of the hammer or press crew and has the charge at heat when they start.
• Crew next: operator, manipulator and helpers start once the first billets are ready, not before.
• Die setter at change times: booked around planned changeovers instead of every shift by default.
• Heat treatment on its own pattern: hardening and tempering crews follow the furnace cycle, with their own lead.
• Banking cover: when the forge stops for a weekend or a holiday, someone trained watches and relights the furnace on a published turn.

Night shifts in a forge often have no engineer and no owner on site. Yet decisions keep arriving: whether a die needs more heat, whether a billet batch looks wrong, whether to halt the hammer when a manipulator feels faint. Name that person on the roster for every shift. Write down which calls are theirs. Then back those calls in the morning, even when they cost output, or the next lead will stop making them.

Date, shift, outgoing lead, incoming lead.
Furnace: zone readings at handover, banked or at heat, any burner or thermocouple trouble.
Billets: heat numbers in the furnace, heat numbers waiting, any wrong length or surface defect.
Press or hammer: die on the machine, strokes run this shift, heat checks, wear or cracks seen.
Lubricant: graphite tank level, spray nozzle condition, any sticking parts.
Changeovers pending: next part, next die, die preheat started or not.
Rejects: count and type this shift, cause if known, parts on hold.
Maintenance: calls raised, still open, machine limits in force.
Near misses or injuries: what happened and what was done.
People: absentees expected next shift, first-week joiners on the floor, anyone on light duty.
Signed by both leads before the outgoing one leaves the gate.

Read the card aloud with both leads standing at the furnace, then at the press. A short paid overlap makes that possible. Each morning the plant head flips through the cards to spot the shift in trouble. More on the handover itself is in our piece on press shift handover.

1. 1

   Count nights per person

   Pull last month's attendance and count nights and weekend furnace turns for each trained hand. Patterns appear quickly.

2. 2

   Rotate among trained people

   Build a night rota across everyone cleared for heater, operator and lead roles. Volunteers can take extra turns, but never by default.

3. 3

   Make night pay visible

   Whatever allowance or rate applies to nights, publish it, pay it on time and keep it identical for everyone cleared for that role.

4. 4

   Record rest between shifts

   Write down rest days and the gap between a night and the next day shift, so nobody drifts into back-to-back turns.

5. 5

   Look after the crew after midnight

   Cold water within reach of the furnace, a shaded bench to sit on, tea at the canteen and a ride home at the change.

Should we run two long shifts or three shorter ones? It depends on furnace cycles, crew size, transport and what your people can sustain in heat. Many forges run two long shifts because crews are small; heat and fatigue then make rest rules and rotation of the hottest tasks more important. Ask the crews which pattern they can live with before you choose.

What if the best heater refuses nights? Train a second heater alongside him on days. He stays reachable by phone for awkward calls while the junior covers nights. The hot forging shift page covers how a fair night rota can be drawn up for furnace hands.

Is the night shift actually holding up? Set rejects, die returns, near misses and absences side by side for each shift once a month. A shift that trails every month usually has a staffing or handover gap, and its crew are rarely the root. Automotive suppliers juggling call-offs can read about overtime for forged parts crews.

Try the handover card for one week on the busiest press. Count last month's nights for each trained hand. Write a named lead against every shift on the coming roster. Those moves expose most of what needs repair. Other recurring issues for forges and press shops are gathered on the forging and forming people page, and roster and leave design explains the general method. For help shaping your pattern, describe your plant here.