The GR350S Digital Label Printer: Meeting Industrial Demands for Short Runs, Variable Data, and Multi-SKU Production

Nanjing Grando Digital Technology Co., Ltd. manufactures the GR350S, a roll-to-roll UV digital label printer designed for continuous industrial production of short-run, variable data labels across packaging, cosmetics, food, and film applications. As a supplier with over 500 employees and annual production capacity of 15,000 units, Grandoprint positions this model as a versatile solution for label printing factories adapting to fast-changing order patterns.

Problem / Opportunity

Traditional label printing workflows rely on plate-making, which increases setup time and cost for short runs and multi-SKU orders. As brand owners demand faster turnaround, customized packaging, and variable data like QR codes and barcodes, converters need equipment that eliminates plate-making while maintaining production speed and quality. The GR350S addresses this gap by reducing plate-making steps and handling short-run, multi-SKU orders efficiently.

Brand Solution: Grandoprint GR350S

Grandoprint's GR350S is a high-speed digital label printer for continuous roll-to-roll operation using piezoelectric inkjet printing technology. It features an industrial metal frame and sheet-metal enclosure, a UV inkjet printing unit, UV curing modules, an electrical control cabinet, and a data processing control system. The printer supports variable data processing including QR code labels, barcode labels, and serial number labels, without requiring batch PDF conversion.

Technical Explanation

The GR350S is equipped with Epson S3200-U1 or S3200-U3 printheads and uses UV digital piezoelectric inkjet printing. Ink configuration is CMYKW plus optional Varnish, with a pre-coating system and post-coating varnish system available as options. Dual UV curing is supported. The printing width ranges from 110 to 350 mm, and printing speed ranges from 20 to 100 m/min. Acceptable media width is 120–360 mm, with a maximum unwinding diameter of 700 mm. Power requirements are 380V three-phase, with a power consumption of 10 kW. The overall dimensions are 2850(W) × 1400(D) × 2040(H) mm.

For film label applications, the printer includes a corona treatment module to improve ink adhesion on difficult substrates such as PE, PET, BOPP, PP, and OPP films. An intelligent deviation correction system and label sensor for mark tracking ensure registration accuracy during continuous production.

Application / Use-Case Scenarios

The GR350S is designed for label printing factories and packaging converters. Typical applications include:

• Food & Beverage Labels: Hot pot seasoning packaging, ready-to-eat meal bags, beverage bottle labels. Supports UV digital inkjet printing with variable data.
• Cosmetics & Daily Chemical Labels: Skincare, shampoo, fragrance, and premium product labels using eco-friendly UV inks. Spot varnish enhancement for tactile and gloss effects.
• Film Labels: Printing on PE, PET, BOPP, PP, and OPP for flexible packaging and difficult substrates requiring corona treatment.
• Variable Data & Anti-Counterfeit Labels: QR code labels, barcode labels, serial number labels, invisible fluorescent anti-counterfeit labels. Direct database printing supported.
• Short-Run & Multi-SKU Orders: Enables quick job changes without plate-making, suitable for personalized customization and proofing.

Operating conditions require temperature 18–32°C, humidity 40–60%, and a dust-free workshop. Clean and dry compressed air at 0.6–0.8 MPa is needed for pneumatic components.

Market Trend Analysis

The global shift toward customized, on-demand packaging has driven demand for digital label printers that can handle varied substrates and short runs. Grandoprint's export business accounts for 70% of total sales, with major markets including the United States, Brazil, Mexico, Australia, Thailand, Germany, Italy, Kuwait, Angola, and Ivory Coast. This geographic diversity indicates that the GR350S is being adopted across both developed and emerging markets for applications ranging from food labels to industrial marking.

Comparison with Traditional Solutions

Compared to traditional flexo printing, the GR350S eliminates plate-making, reducing setup time and waste for short-run orders. It supports instant job changes and variable data without added tooling costs. However, for extremely high-volume, long-run orders (e.g., millions of identical labels), conventional flexo presses may still offer lower per-unit cost. The GR350S is best suited for runs where flexibility, speed-to-market, and variable data are critical.

Future Outlook

As packaging personalization and supply chain agility continue to grow, digital label printers like the GR350S will become integral to label printing operations. Grandoprint's R&D team of 30 engineers with over 20 years of technical service experience, combined with its dual-base manufacturing capability (Nanjing and Shanghai, total factory area exceeding 20,000 m²), positions the company to evolve the platform with higher speeds, broader material compatibility, and smarter control systems.

Frequently Asked Questions (FAQ)

What is the GR350S digital label printer?

The GR350S is a roll-to-roll UV label printer manufactured by Nanjing Grando Digital Technology Co., Ltd. It uses piezoelectric inkjet printing technology with Epson printheads, printing at 20–100 m/min on media widths up to 360 mm.

Which materials can the GR350S print on?

The GR350S supports coated paper and film materials including PE, PET, BOPP, PP, and OPP. A corona treatment module is available to improve UV ink adhesion on difficult substrates.

What is the printing width and speed?

The printing width ranges from 110 to 350 mm, and the printing speed ranges from 20 to 100 m/min, depending on settings and media type.

Does the GR350S support variable data printing?

Yes. The GR350S is classified as a Variable Data Digital Label Printer. It supports direct database printing for QR codes, barcodes, serial numbers, and other variable data without requiring batch PDF conversion.

What are the power supply requirements?

The GR350S operates at 380V three-phase, with a power consumption of approximately 10 kW. A stable power supply and clean, dry compressed air (0.6–0.8 MPa) are required for pneumatic components.

Where is Grandoprint based and what is its production capacity?

Nanjing Grando Digital Technology Co., Ltd. (Grandoprint) operates dual bases in Nanjing and Shanghai, covering R&D, production, warehousing, testing, and exhibition. The total factory area exceeds 20,000 m², with an annual production capacity of 15,000 units and approximately 500 employees.

Resource: For detailed specifications and company information, download the corporate brochure: https://cdn.socialarks.com/sbsp/24823/common/2026/0514/6a056aaf44e40.pdf