FAQs

GravoPrint printing
What substrates can GravoPrint print?

GravoPrint handles paper, BOPP, polythene, polyester and foil across flexible packaging, labels and lidding work, at web widths up to 1300 mm. Mechanical line shaft technology holds register and colour across the longest production runs without drift.

How fast does GravoPrint run?

The press runs at up to 300 metres per minute. With an auto reel changing turret and register control, higher line speed cuts changeovers and downtime, so far more good metres leave the press each shift.

What technologies are built into GravoPrint?

GravoPrint is built around a mechanical line shaft drive with SIEMENS electronics, HMI, servo motors and PLCs, plus register control and IoT diagnostics. Manufacturing and process control are highly efficient, using our own in house automation and rigorous quality control.

What production advantages does GravoPrint offer?

Shorter changeovers, fewer stops and controlled solvent retention lower the variable cost of every run. Optional online lamination or coating lets you produce finished goods in a single pass, reducing inventory, floor space and time, and improving return on the machine.

Can GravoPrint be tailored to our line?

Yes. Every press is built around your substrate, structure and utilities, with shaftless or shafted cylinders and options such as auto reel changing, electrostatic assistance and ink circulation added to suit the work you run.

Coating and lamination
Which coating and lamination machines do you build?

We build UV coating, double head coating, and wet, dry, solventless and wax lamination machines. Each is configured for the structure you make, from paper foil laminates to induction wads and barrier films.

Can a coating line lay two coats in one pass?

Yes, the GravoCoat 2Head is made for this application. Explore our SPM offerings where each machine is customised for your substrate and line.

Our team of engineers design, build and test each machine as per your custom requirements.

Do you offer solventless lamination?

Yes. GravoLam Solventless runs at up to 350 metres per minute with a monocomponent adhesive, producing odour free laminates for food grade, pharmaceutical and FMCG work, with the pre mixture pump and tank included in the supply.

Can one machine do more than one job?

Often, yes. GravoLam Dry doubles as a single head coater, and Gravo2in1 combines wet lamination and registered coating to build two layer coated or three layer laminated structures on one line.

Slitting and secondary
Which slitting machines do you offer?

GravoSlit HSS slits fragile multilayer laminates at up to 400 metres per minute, while GravoSlit Drum handles every multilayer laminate, from aluminium foils to polyester films to paper based laminates, on a stable centre drum.

What secondary machines complete the line?

GravoCheck is a reversible inspection rewinder that screens printed webs before downstream processes, and GravoDoc is a doctoring machine that salvages finished reels affected by defects such as slipping during final winding.

How do you protect delicate laminates during slitting?

A floating unwind, pneumatic side thrust for rewind tension, quick change chucks and razor in groove slitting keep cuts clean and edges undamaged, even on the most fragile multilayer structures.

Are slitting widths configurable?

Yes. Slit widths from 100 to 600 mm and web widths up to 1800 mm are configured per job, with high pressure trim removal and SIEMENS closed loop control set from a touch screen panel.

Turnkey and configuration
Can you supply a complete converting line?

Yes. Because we build printing, coating, lamination and slitting machines in house, we can plan a coordinated line where every machine fits together from the outset, rather than stitching together equipment from separate suppliers.

Do you integrate with machines we already run?

Yes. Based on your existing layout, we analyse the technical fit and adapt our machine to slot into the line you already operate, with support from our technical office.

What can a Narendra line cover?

From printing through coating, lamination, slitting and inspection to salvage rewinding, we can cover the full converting sequence for multi layer flexible laminates in a single, coordinated plan.

How do you ensure quality across the line?

Every machine is designed, fabricated, assembled and built on our own VMC, CNC and grinding machines, so quality is held to a single standard from the first cut of steel through to commissioning on your floor.

What does a turnkey approach bring to installation?

It turns installation into a planned, proven start up: less correction on site, fewer surprises, and greater predictability in output, quality and timelines.

Can you help plan the plant, not just the machines?

Yes. Tell us the substrate, structures and throughput you are aiming for, and we will help think through the line, the utilities and the floor, turnkey if you need it, on your own timeline.

In-house manufacturing
What does 100% in-house manufacturing mean?

It means every step happens under our own roof: design, sheet metal, machining on VMC and CNC, grinding, assembly, software and testing. Nothing critical is outsourced, so we control quality and delivery ourselves.

Why does in-house manufacturing matter for our machine?

It lets us tailor each machine to your job, hold tolerances with hardened, ground components, and prove the machine on our floor before it ships, rather than fixing it on yours.

Does in-house help delivery or just quality?

Both. Running every step ourselves reduces dependence on outside suppliers, shortening lead times while holding quality, for more predictable delivery and commissioning.

Sustainability
How do your machines support sustainable packaging?

They are built to make cost effective, sustainable packaging: efficient drying and curing, hot air recirculation that can save up to 50% energy, and solventless lamination that removes solvent from the process entirely.

What reduces waste on a Narendra line?

Register and tension control cut off spec material, while inspection and salvage rewinding recover good material from defective reels, so less product is scrapped.

Can efficiency gains be measured?

Yes. Energy recirculation, solvent reduction and lower waste give a clear baseline to measure against, so improvements show up in consumption and cost per run.

Support and service
What support do you provide after installation?

We commission on your floor and stand behind the machine for years, with remote diagnostics, service and spare parts kept close, so the people who built the machine are the people who support it.

How do I reach your service team?

Our support line is +91 93504 50300 and support@narendragravure.com, backed by IoT enabled remote diagnostics that let us troubleshoot many issues without a site visit.

Can you upgrade or retrofit an existing machine?

Often, yes. Tell us the machine and the work you want it to do, and our technical office will assess what can be retrofitted or optioned, from auto reel changing to register control.

Tell us what you are trying to make. We will help you think through the line, the utilities and the floor — turnkey if you need it — and the machines come when you are ready, on your timeline, not ours.

Let us think through your plant together

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