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With advanced forming technology, precision control systems, and automatic operation, our paper cup machines can produce various sizes of single PE coated and double PE coated paper cups for coffee cups, beverage cups, takeaway cups, and food packaging applications.
LM-C3-90S Square Paper Cup Forming Machine
LM-C3-90S square paper cup forming machine: 6-28 oz square cups, 60-90 pcs/min, 18 kW, single arm take-out.
Quick Answer: What Is The LM-C3-90S?
The LM-C3-90S is a square paper cup forming machine that forms single and double PE coated paper cups at 60-90 pcs/min (80 pcs/min for embossed cups). It is powered by 4×380 V 50 Hz / 18 kW, needs 0.4 m³/min of compressed air, and ships in 30-35 working days. It is built for coffee chains, beverage brands and food service distributors.
The LM-C3-90S makes square rim, square base and oval base paper cups from 6 oz to 28 oz at 60-90 pcs/min. Square cups are a differentiation product: they look different on the shelf and are used by brands that do not want a standard round cup.
Each machine is built for one cup shape in the 6-28 oz range, chosen when you place the order.
What Is A Square Paper Cup Forming Machine?
A square paper cup forming machine is an automatic forming machine that turns pre-printed, die-cut paper blanks into finished paper cups in one continuous cycle: the blank is fed, the body is formed and side-sealed, a bottom disc is inserted and heat-sealed, the rim is curled, and finished pieces are counted and stacked.
Unlike semi-automatic equipment, which moves cups between stations by hand, a fully automatic machine such as the LM-C3-90S keeps every station in mechanical phase. That is why it can hold 60-90 pcs/min (80 pcs/min for embossed cups) with a single operator, and why output stays consistent across long shifts for coffee chains, beverage brands and food service distributors.
Feature:
- Square mouth, square base and oval base cups – differentiated shapes
- 6-28 oz range – dessert cups to large drink cups
- 60-90 pcs/min – strong speed for a non-round cup
- Single arm robot take-out – gentle handling of shaped cups
- Open cam index box and gear transmission – accurate shape forming
- Lester bottom heating – sealed square bottoms
Application:
The LM-C3-90S is chosen for:
- Dessert and ice cream cups in square format
- Brand differentiated drink cups
- Promotional and seasonal cup designs
- Premium food packaging lines
Square cups usually sell at a higher margin than round cups, which is why converters add this machine as a second line.
Machine Parameters:
| Item | Specification |
| Model | LM-C3-90S |
| Cup Size | 6-28 oz, square shape, one size per machine |
| Production Speed | 60-90 pcs/min |
| Raw Paper | PE 18 + 170 g/m², or 320 g/m² + PE 26 g/m² |
| Power Supply | 4 × 380 V 50 Hz / 18 kW |
| Air Consumption | 0.4 m³/min |
| Dimension | L2400 × W1680 × H1700 mm |
How Does The LM-C3-90S Work?
The LM-C3-90S runs a continuous, fully automatic cycle. One operator loads material and monitors the panel; the stations below run in sequence:
- Blank feeding: Pre-printed, die-cut fan-shaped blanks are loaded into the magazine and fed one by one.
- Body forming: The blank wraps around the mandrel and the side seam is sealed with heat.
- Bottom insertion: A bottom disc is punched from the paper roll and placed into the body.
- Bottom sealing: The bottom heater bonds and knurls the base so the container is leak-proof.
- Rim curling: The top rim is rolled outward for a smooth drinking edge and a tight lid fit.
- Counting and stacking: Finished pieces are counted automatically and stacked into sleeves.
Main Machine Features:
- Squeeze Type Bottom Forming: the bottom is formed by pressing rather than folding, which is what keeps a square base flat and sealed.
- Single Arm Robot Take-Out: shaped cups cannot be blown out of the mould; the arm removes them without distorting the corners.
- Open Cam Index Box: simple to inspect and service compared with a closed gearbox.
- Lester Bottom Heating: reliable sealing on both board options.
- 60-90 pcs/min: square cup forming at a speed that still makes commercial sense.
What Can The LM-C3-90S Produce?
| Product | Typical Size | End Use |
| Square dessert cup | 6-12 oz | Ice cream, dessert brands |
| Square drink cup | 12-20 oz | Beverage brands, promotions |
| Oval base cup | 8-16 oz | Premium coffee packaging |
| Large square cup | 20-28 oz | Takeaway food service |
Output Planning: What Can You Expect Per Shift?
Use these numbers to size the machine against your order book:
| Production Window | Running Time | Output At Rated Speed |
| Per hour | 60 min | 5,400 cups |
| Per 10-hour shift | 10 h | 54,000 cups |
| Per day (2 shifts) | 20 h | 108,000 cups |
| Per month (26 days, 2 shifts) | 520 h | 2,808,000 cups |
Figures are calculated at the rated top speed of 60-90 pcs/min (80 pcs/min for embossed cups) and assume steady material supply and normal changeover time. Running smaller sizes or heavier board will sit at the lower end of the range.
Is The LM-C3-90S The Right Machine For Your Factory?
Choose the LM-C3-90S if:
- You need 60-90 pcs/min (80 pcs/min for embossed cups) of steady output and want one machine to cover 6-28 oz (square cups, one size range per machine).
- You supply coffee chains, beverage brands and food service distributors and need consistent, leak-proof quality on every batch.
- You want a medium speed platform with mechanical cam drive rather than chain drive, to keep maintenance predictable.
- You plan to run two shifts and need the machine to hold tolerance over years, not weeks.
Consider a different model if:
- Your orders are still small and seasonal: a lower-output model keeps your capital cost down.
- You only need one fixed size today: a dedicated single-size machine is cheaper than a wide size window.
- Your main problem is defect rate rather than speed: add an inspection machine before buying more forming capacity.
Send us your container sizes, board specification and target output per month. Our engineers will size the right model and confirm the tooling before you order.
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FAQs:
What square cup shapes does the LM-C3-90S make?
It makes square rim, square base and oval base paper cups from 6 oz to 28 oz, with one shape configured per machine.
How fast is the LM-C3-90S square cup machine?
It runs at 60-90 cups per minute depending on cup shape, with a lower figure when a logo registration system is used.
What board and power does the LM-C3-90S use?
It runs PE 18 plus 170 g/m2 board or 320 g/m2 board with PE 26, needs 4 x 380 V / 18 kW power and 0.4 cubic metres per minute of compressed air.
What is the lead time and how is the LM-C3-90S shipped?
Standard lead time is 30 to 35 working days after the deposit. The machine is packed in a fumigated export wooden case with moisture protection, shipped by sea as a full container or groupage, and delivered with a full spare parts kit, tooling set and English manuals.
Do you provide installation, training and after-sales service for the LM-C3-90S?
Yes. Every machine is tested with your container size before shipment, and we provide installation guidance, operator training videos and remote commissioning support. Engineers can be dispatched for on-site commissioning, and wearing parts are stocked for long-term supply.
Can the LM-C3-90S be customised for special sizes, board or voltage?
Yes. The tooling set is made for your target size range, and the electrical system can be built for the local voltage and frequency of your country. Optional units such as online inspection, paper blank feeders and embossing can be added at the time of order.
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