Edexcel A-level Design & Technology: Product Design (9DT0) · Features of Manufacturing Industries
Mini-Lesson
Features of Manufacturing Industries
This mini-lesson covers the Features of Manufacturing Industries: scales of production, just-in-time and lean manufacturing, standardisation and standard components.
You will compare one-off, batch, mass and continuous production, weigh JIT, and calculate a break-even quantity. Press Start to begin.
Scales
Scales of production
The right scale depends on quantity, variety and cost:
One-off / bespoke — a single item made to order (a tailored suit, a bridge). High skill, high unit cost.
Batch — a set quantity, then the line is changed for a different product (a bakery bread run, a print run).
Mass — very large numbers of identical items on a flow line (drinks cans, fasteners).
Continuous — non-stop 24/7 production of the same thing (steel strip, chemicals, paper).
As volume rises, tooling investment rises but the unit cost falls, because fixed costs spread over more items.
Quick check
Which scale?
?A plant rolls steel strip non-stop, 24 hours a day, changing product only for maintenance. Which scale of production is this?
JIT & lean
Just-in-time and lean manufacturing
Modern industry works to cut waste:
Just-in-time (JIT) — materials arrive exactly when needed, so little stock is held. This frees cash and space, but a supply hiccup can halt the line.
Lean manufacturing — systematically removes the seven wastes (overproduction, waiting, transport, over-processing, inventory, motion, defects), often using Kanban pull signals.
Trade-off: JIT is efficient but leaves little buffer, so it depends on reliable suppliers and quality.
Quick check
The JIT trade-off
?What is a key risk of a just-in-time (JIT) system, and its main benefit?
Standardisation
Standardisation and standard components
Consistency is designed in:
Standardisation — making parts and processes to agreed sizes/specs so they are interchangeable.
Standard components — bought-in parts (screws, bearings, resistors) made to standards, which cut cost, ease assembly and simplify repair.
Division of labour — splitting assembly into simple repeated tasks raises speed and consistency.
Sort it
Sort by scale of production
Tap a product, then its usual scale.
1️⃣ One-off / bespoke
📦 Batch
🏭 Mass / continuous
Quick check
Why standard parts?
?Why do designers specify standard components such as M4 screws rather than custom fixings?
Match it
Match each term to its meaning
Tap an item on the left, then its match on the right.
Term
Meaning
Calculate
Your turn — break-even
1A product has fixed costs of 5000 (tooling), sells for 12 each with variable cost 4 per unit. Break-even quantity = fixed costs ÷ (price - variable cost). Calculate the break-even quantity.
units
Hint: 5000 ÷ (12 - 4) = 5000 ÷ 8.
Recap
The big ideas to know
Scales: one-off/bespoke · batch · mass · continuous (unit cost falls as volume rises)
JIT: minimal stock, frees cash/space but fragile to supply delays
Lean: removes the seven wastes; Kanban pull signals
Standardisation and standard components cut cost and ease assembly/repair