Welcome to ANDA
Welcome to ANDA
A UPVC door and window profile factory rarely loses money because the extruder cannot turn. The gap usually comes from a wrong capacity number: catalog kg/h is treated as daily sales volume, while line speed, mould change time, start-up scrap, cutting loss, and labor breaks are left out. A practical check links mass output to good meters, then to cost per meter.
A conical twin screw extruder feeds a cooling or vacuum calibration table; then the hauling machine, cutting machine, and stacker finish the profile. With different moulds, it can make window and door profiles, wall panels, sill boards, cabinet door boards, curtain boxes, trunking, cable ducts, skirting, and protection corners.
Rated output is a starting point, not a shipping promise. It shows what the extruder can push with suitable PVC compound, clean tooling, trained operators, and correct cooling. Real UPVC profile production line capacity must be de-rated for shift pattern, product mix, mould changes, and rejected meters.
Good meters per shift = line speed × 60 × running hours × (1 - scrap rate)
Good kg per shift = good meters per shift × profile weight per meter
Effective kg/h = good kg per shift ÷ planned shift hours
Record profile weight, haul-off speed, running hours, scrap rate, and changeover time. Together, they show why one long run may be cheaper than many short runs.
The UPVC Door And Window Profile Production Line fits this de-rating method because it covers extrusion, cooling, hauling, cutting, and stacking in one flow. Its energy-saving motor design can cut power use by 20% or more, affecting real cost per meter.
Managers ask for kg/h, while window fabricators buy by length. Both numbers are correct, but they answer different questions. A heavy main frame profile may show attractive kg/h while producing fewer meters. A light glazing bead may run many meters with lower mass output.
Gross kg/h = profile weight per meter × line speed × 60
Line speed = gross kg/h ÷ profile weight per meter ÷ 60
Example: a UPVC window frame profile weighs 0.75 kg/m and runs steadily at 2.6 m/min. Gross output is 0.75 × 2.6 × 60 = 117 kg/h. If another profile weighs 1.10 kg/m at the same speed, gross output becomes 172 kg/h, but both still deliver 156 gross meters per hour. So a fair PVC window profile making machine comparison must include kg/h, m/min, and kg/m.
Cooling length and calibration also set the ceiling. Raising haul-off speed before the profile is stable can cause bowing, shrinkage, rough surface, poor corner strength, or cutting burrs. The best UPVC window profile line speed is the fastest speed that holds weight, surface, straightness, and assembly fit.
The UPVC Door And Window Profile Production Line supports this balance with a conical twin screw extruder, calibration cooling, rubber-block hauling, wear-resistant cutting, and stacking. Online sealing strip co-extrusion and installation can be selected when integrated sealing is required.
Mould change time is easy to ignore because it does not appear on a single product test. In a factory making several window series, it can be the biggest capacity leak. Four 90-minute changes per week equal six lost production hours before start-up scrap.
Assume one line is planned for six 24-hour days. It makes three profile types. Each mould change takes 90 minutes, and each start-up loses 35 minutes for heat balance, calibration, surface checking, and cutting confirmation.
Planned time: 144 hours
Changeover loss: 3 × 1.5 = 4.5 hours
Start-up loss: 3 × 0.58 = 1.74 hours
Usable extrusion time: 137.76 hours
At 2.6 m/min and 4.5% scrap, saleable weekly output is:
2.6 × 60 × 137.76 × 95.5% = 20,521 meters
Without mould and start-up loss, the estimate becomes 21,456 meters. The 935-meter gap affects delivery dates, resin purchasing, and labor planning. Good mould storage, clear procedures, calibration checks, and a first-piece checklist can reduce the loss.
The UPVC Door And Window Profile Production Line is designed for different moulds, serving window profiles, door profiles, sill boards, cable ducts, skirting, and protection corners. That flexibility is stronger when changeover routines are disciplined.
Scrap rate is not just a quality number. It changes material use, power use, labor use, and delivery risk. In PVC profile extrusion, scrap often comes from start-up purging, wrong color, unstable wall thickness, cutting error, scratches, poor sealing strip fit, or profiles rejected after cooling.
Material cost per good meter = profile weight × compound cost per kg ÷ (1 - scrap rate)
Power cost per good meter = line power kW × electricity price ÷ good meters per hour
Labor cost per good meter = hourly labor cost ÷ good meters per hour
Item | Example value | Cost per good meter |
PVC compound | 0.75 kg/m at $1.25/kg, 4.5% scrap | $0.98 |
Power | 40 kW at $0.12/kWh, 149 good m/h | $0.03 |
Labor | 2 operators at $4/h each | $0.05 |
Packing and routine wear | Factory estimate | $0.05 |
Estimated running cost | Before overhead and profit | $1.11 |
The same profile at 8% scrap raises material cost to $1.02 per good meter before power or labor changes. On 20,000 meters per week, that adds more than $800 per month in material alone. For high-volume PVC door and window profile production, scrap control often beats headline speed.
The UPVC Door And Window Profile Production Line helps reduce these losses through stable temperature control, low-power operation that can reach about 25 kW under suitable conditions, smooth hauling, dust-cleaner cutting, and a complete downstream layout.
A serious capacity quote should not stop at “output per hour.” It should show the tested profile, compound, and good-product rule. Buyers planning a new PVC profile extrusion line can request a trial based on their market profiles.
· Profile drawings and estimated weight per meter
· Stable line speed for each profile family
· Good meters per hour after first-article approval
· Start-up scrap in kilograms and meters
· Average mould change time with trained operators
· Power consumption during stable production
· Cooling water, air, and workshop needs
· Spare parts, installation support, and training
A useful acceptance test runs long enough to show heat balance and dimensional stability. Thirty minutes may prove the line can start; three to four hours says more about real factory output. Check assembly fit after cooling.
The UPVC Door And Window Profile Production Line is supplied as a one-stop PVC profile extrusion equipment solution with pre-sales consultation, installation support, and after-sales service. India service and consumable parts support help after commissioning.
Zhangjiagang Anda Machinery Co., Ltd. focuses on integrated plastic extrusion solutions, including PVC profile extrusion machines, wall panel lines, ceiling panel lines, edge band lines, sheet and board extrusion lines, pipe lines, mixers, pulverizers, and auxiliary machinery. Its whole-factory plans cover equipment selection, manufacturing, installation, commissioning, training, and after-sales support.
As a PVC Laminate Sheet Production Line manufacturer, Anda also works with surface finishing and lamination equipment for panel and profile factories. Anda PVC Laminate Sheet Production Line videos let buyers view machine operation, material flow, and surface results before discussing layout.
For buyers comparing UPVC profile extrusion line options, Anda’s UPVC Door And Window Profile Production Line brings together extrusion, cooling, hauling, cutting, stacking, optional sealing strip systems, energy-saving design, and service support. Welcome to watch Anda's video on the UPVC Door And Window Profile Production Line to learn more details.
Real capacity is a chain: kg/h, m/min, profile weight, mould change time, scrap rate, power use, and labor cost. When these numbers are calculated together, a factory can quote window profile orders with confidence and avoid buying a line that only looks productive on paper.
The UPVC Door And Window Profile Production Line gives factories a practical base for this calculation because it covers the process from PVC compound plasticizing to stacked profiles. The right choice makes good meters at a stable cost per meter, shift after shift.
Calculate gross meters from line speed, then subtract downtime and scrap: good meters per shift = m/min × 60 × running hours × (1 - scrap rate). Multiply by kg/m to get good kg per shift.
Kg/h measures mass output from the extruder. M/min measures saleable length from the haul-off. Use profile weight per meter to convert between them because heavy and light profiles give different kg/h at the same speed.
Mould change time reduces running hours. Many short batches add set-up time, start-up scrap, and labor cost. That raises cost per meter even when line speed is unchanged.
A complete line links extrusion, cooling, hauling, cutting, and stacking. It reduces mismatch risk between machines and makes stable line speed, good meters, power use, and cost per meter easier to measure.
