NSWR680-1000 Double-Frequency-Conversion Jumbo Jigger Dyeing Machine: Buying Guide

When Do You Need a Double-Inverter Jumbo Jigger Dyeing Machine?

A jumbo jigger dyeing machine handles longer open-width batches than a standard jigger by building a bigger fabric roll in one pass. The NSWR680-1000 is the entry-to-mid large-roll class of our double-frequency-conversion jumbo jigger series.

Double-frequency-conversion - also called dual-frequency-conversion or double inverter - means two variable-frequency drives control the two main rollers independently. The fabric stays under constant tension and constant linear speed in both directions, which is the practical reason shades stay level on long batches.

For buyers looking for an energy-saving jigger dyeing machine, inverter drives ramp smoothly, hold speed and tension precisely, and avoid the current spikes of older contactor-controlled machines - a real advantage for continuous small-batch, multi-variety running.

Core Parameters & Technical Data

Configuration: NSWR680-1000 double-frequency-conversion jumbo jigger - the mid-size class of our wide jumbo line.

Drive: imported Yaskawa frequency converter.

Control: customized PLC program controller; all required functions can be added according to user settings.

Design: advanced design, reasonable structure, safe and reliable operation.

Control principle: independent inverter control of the two rollers maintains constant tension and constant linear speed, minimizing shade variation as the roll builds in both directions.

The machine shares the same inverter-and-PLC platform as the larger NSWR1200-1600 wide jumbo, so the exact automatic function list - temperature control, pass counting, reversing, cloth manipulation - is configured to your settings; confirm your requirements with us at inquiry.

How to Choose the Right Double-Inverter Jumbo Jigger

Choose the size class by your fabric. The NSWR680-1000 covers medium large-roll batches; step up to the NSWR1200-1600 for wide, heavy home-textile or upholstery rolls. The two share the control platform, so operators can move between them.

Insist on an imported inverter and a programmable PLC. The Yaskawa converter with user-customized functions is what makes the machine adapt to your recipes, rather than the reverse.

Verify the real job of double inverter: constant tension and constant linear speed in both directions. Ask for how tension is adjusted and held uniformly across the batch.

Think about energy. Inverter drives save power versus older mechanical drives, which matters when a dyehouse runs many small batches day after day.

Confirm which automatic functions are standard versus configured on your PLC package, so the quote matches the automation you actually need.

Buy from a jumbo jigger manufacturer that builds the whole size range, with installation, commissioning, spare parts and training behind the machine.

Common Mistakes Buyers Make

Choosing the wrong size class. Running wide, heavy rolls on the 680-1000 machine means more passes per batch; running narrow batches on the 1200-1600 wastes capacity. Match the class to your fabric.

Assuming every inverter machine is equal. Check the converter brand (imported Yaskawa) and whether the PLC is genuinely customized to your functions.

Over-buying automation before confirming what the PLC package includes - or under-buying it, and finding the machine cannot run your recipe.

Expecting double inverter to mean maximum speed. Its real value is tension and speed stability, not raw speed.

Buying a jumbo jigger without factory after-sales support. Commissioning and recipe tuning on an inverter-controlled line are where a direct production factory earns its keep.

Why Buy from Wuxi Runda

We are a production factory founded in 2004, located in Qianzhou, Wuxi - at the heart of Jiangsu's dyeing machinery industrial cluster, with component suppliers and skilled workers nearby.

We cooperate with textile research institutes and technical colleges year-round, and design and develop our own jigger series after absorbing the advantages of jiggers from Japan, Denmark and Italy.

Our jumbo jiggers use imported Yaskawa converters and customized PLC control, built for small batches, multiple varieties and low energy consumption, with stable, reliable performance.

Our equipment is exported to Vietnam, India, Bangladesh, Indonesia, Pakistan, Japan, Thailand and other Southeast Asian markets, backed by complete after-sales service including installation, commissioning, spare parts and operator training.

Frequently Asked Questions

What does double-frequency-conversion mean on a jigger?

Two variable-frequency drives (here an imported Yaskawa converter) control the two main rollers independently, keeping the fabric under constant tension and constant linear speed in both directions. This reduces shade variation on long batches.

What is the difference between NSWR680-1000 and NSWR1200-1600?

Same double-inverter platform, different size class. The NSWR680-1000 is the mid-size large-roll machine; the NSWR1200-1600 is the wide, heavy-duty class for wide open-width and circular knit fabric. Send us your fabric width and roll size and we will match one.

Can the PLC functions be customized?

Yes. The machine uses a customized PLC program controller, and all required functions can be added according to your settings.

Is this an energy-saving jigger dyeing machine?

The imported inverter drives ramp and hold speed and tension smoothly, avoiding the current spikes of older drives. Our machines are positioned for small-batch, multi-variety, low-energy production.

Which fabrics can it dye?

It is built for open-width large-roll jig dyeing. Tell us your fabric type, width and lot size, and our engineers will confirm the right configuration for your process.

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