Is the 210 s cycle measured or calculated?

Answer: Calculated. Clamp 8 s, inject 12 s, hold 35 s, cool 145 s, demould 10 s add to 210 s, and shortening the cycle means changing water circuits, not turning a dial.

Are three quality gates enough?

Answer: They are. First article governs the mould, patrol governs drift, final governs sealing, and the rest are held by fixtures and self-checks, which is how an explosion proof tactical equipment safety box factory keeps the 210 s rhythm.

Can the wall tolerance be opened to ±0.2 mm?

Answer: Yes, but drop and leak targets open with it. Every 0.1 mm lost at the thin patch raises stress at a given drop height.

What separates 640 from 624?

Answer: Yield. Of 640 shells, 97.5 percent pass; the rest carry weld lines or thickness spread that cannot be reworked.

Does an explosion proof tactical equipment safety box factory take orders below 10,000?

Answer: Yes, priced on changeover count. Twelve changeovers burn 8 h, which adds under 1 CNY per unit across 10,000 but around 4 CNY across 2,000.

Explosion proof tactical equipment safety box factory

Quick answer: An explosion proof tactical equipment safety box factory runs a 210 s cycle and three quality gates; 640 shells a day, 624 shippable.

Why an Explosion proof tactical equipment safety box factory Locks the Cycle at 210 s
Nine Processes, Three Quality Gates
Holding ±0.15 mm with 230 °C Melt and 60 °C Mould
From 640 to 624: Yield 97.5 Percent and OEE 82 Percent
Where the 25 Delivery Days Go
FAQ

1. Why an Explosion proof tactical equipment safety box factory Locks the Cycle at 210 s

Output is set by the slowest station, and here that station is moulding. Clamp 8 s, inject 12 s, hold 35 s, cool 145 s, demould 10 s: 210 s per shell, one cavity, no slack.

An 800 t press at 7.5 effective hours a shift gives 128 shells, 385 a day over three shifts; two presses, 770. Changeover, tuning and waiting for material take 17 percent, so an explosion proof tactical equipment safety box factory schedules 640.

Process	Equipment	Cycle s
Dosing and drying	desiccant dryer, 120 kg	90
Injection moulding	800 t press	210
Degating and trimming	pneumatic cutter, fixture bench	45
Hinge and latch fitting	riveting press	120
Gasket insertion	press-in jig	75
Air leak test	differential pressure bench	60
Foam cutting	die and punch press	95
Visual inspection	light booth	50
Packing	carton sealer	40

Only moulding runs at 210 s; every other process finishes inside 120 s, so no explosion proof tactical equipment safety box factory levels it any other way.

Three numbers must reconcile: 770 theoretical, 640 scheduled, 624 shippable; a plant quoting only two has left yield out.

2. Nine Processes, Three Quality Gates

Inspecting all nine processes is not realistic. Quality sits at three gates, first article, patrol and final; the other six rely on fixtures and self-checks.

Explosion proof tactical equipment safety box open head-on, egg-crate lid foam, six foam dividers, two latches, red-core valve and steel corners

First article runs by mould number, three shells at start-up, checking the cavity, wall thickness on four sides and weld lines. One failure and the mould stays out.

Patrol takes 20 shells every 2 h, measuring wall thickness and latch holding force, sampled per press, not per batch: 20 each, 40 across two.

Final is air only, 100 percent: charged to 1.0 kPa, held 60 s, rejected above 0.3 kPa. Two benches at 60 s keep it inside a third of the cycle.

Equipment	Quantity	Gate it serves
Differential pressure bench	2	final, 1.0 kPa held 60 s
Ultrasonic thickness gauge	2	first article and patrol
Digital caliper	4	cavity and hardware points
Latch pull gauge	2	patrol, holding force
Light booth	1	first article, patrol review

Each gate owns one segment, so a faulty case traces back to the gate that missed it, as an explosion proof tactical equipment safety box factory must show.

3. Holding ±0.15 mm with 230 °C Melt and 60 °C Mould

Wall thickness is nominally 4.0 mm and ±0.15 mm is the hard line. A 5 °C swing in melt or 2 °C in mould moves thickness 0.1 mm; drifting off 23±3 °C or 55%±10% humidity moves it further.

Four readings per shell, at the long-side midpoint, short-side midpoint, a corner radius and the base centre; a spread above 0.30 mm rejects it, since the thin patch splits first. Mould temperature runs on zoned circuits written into the set-up sheet; crossing one makes that face run thin. Melt follows dew point and hopper temperature, and a dew point above −20 °C stops the line. Patrol readings plot as a trend, and five consecutive drifts trigger a mould temperature change before the tolerance is breached.

Melt at 230 °C and mould at 60 °C are a linked pair. Drop the melt 10 °C alone and weld lines deepen at the latch pocket, so an explosion proof tactical equipment safety box factory downgrades the shell rather than reworking it.

4. From 640 to 624: Yield 97.5 Percent and OEE 82 Percent

640 times 0.975 is 624, but the figures differ in kind: 640 is scheduling, after changeover and start-up; 624 is shippable, after defects.

Explosion proof tactical equipment safety box showroom, pale wood shelves filled with coloured cases, a man in a white polo standing in the aisle

OEE 82 percent is the floor; scheduling uses 83 percent so 770 converts to 640. On a floor day an explosion proof tactical equipment safety box factory makes 631 and ships 615; the gap closes with overtime, never a shorter cycle.

Cycle s	Gap to 210 s	How it is covered
210	0	master cycle, no buffer
120	−90	two stations in parallel
95	−115	one machine covers two shifts
60	−150	two leak benches in rotation
40	−170	packing doubles as visual

The table finds slack: packing absorbs visual inspection, moulding cannot be touched, so an explosion proof tactical equipment safety box factory argues capacity on the press.

5. Where the 25 Delivery Days Go

Twelve thousand cases at 624 a day is 19.2 days, scheduled as 19; three days of preparation and three of dispatch make 25.

Twelve moulds are the second variable: 40 min a changeover, 8 h for a full rotation, the equivalent of 137 shells, so orders are grouped by colour and mould and changeovers fall from 12 to 4.

Foam is the third: a die takes 5 days and runs parallel with moulding, but cutting sits in the last three days, and one late day delays the shipment. An explosion proof tactical equipment safety box factory that opens these three blocks gives the buyer something to check.

Conclusion

Capacity at an explosion proof tactical equipment safety box factory is not a monthly figure; it is 210 s of cycle, 640 scheduled, 624 shippable. Nine processes are held by three gates, wall thickness stays inside ±0.15 mm, and 25 days is 19 plus 3 plus 3.