Gethray C4 Flex Printing Machine – Overview
The Gethray C4 Flex Printing Machine is the machine Indian flex printing units are built around. Konica Minolta 512i heads on a 3.2-metre chassis give you the classic formula – tough outdoor-durable solvent prints at speeds that keep the take-up roll busy all day. The C4 scales with your business: start with 4 heads and step up to 8 heads for up to 2400 sq ft/hr of banner output. BYHX electronics with UltraPrint, MainTop or PhotoPrint RIP support mean any operator in the industry already knows how to run it.
The Gethray C4 runs all day on flex banners, vinyl hoardings, self-adhesive vinyl, one-way vision film, mesh, backlit flex, coated banner, PVC and PP media, canvas and fabric backdrops. Solvent and eco-solvent prints are waterproof and UV-resistant for long outdoor life, and the machine’s service ecosystem is supported across India.
Key Features
- Konica Minolta 512i (30 pl) print heads – 4/6/8-head configurations
- Positive-pressure ink system with SPD ink pump for stable high-speed jetting
- BYHX main board – industry-standard, easy service anywhere in India
- Leadshine servo motor & drive – smooth, accurate carriage motion
- High-quality vacuum bed + big pinch rollers hold flex flat at full speed
- Germany drag chain & heavy-duty cabling for long production life
- Three-stage media heating (pre / print / rear) + IR drying fans
Print Speed (8-head Konica 512i configuration)
| Print Mode | Output Speed |
|---|---|
| 2 pass (360×360 dpi) | up to 2400 sq ft/hr |
| 3 pass (360×540 dpi) | up to 2000 sq ft/hr |
| 3 pass (480×540 dpi) | up to 1800 sq ft/hr |
Speeds are manufacturer test-condition figures; real output varies with media, RIP settings and feather mode.
Technical Specifications
| Model | Gethray C4 |
| Print Head | Konica Minolta 512i (30 pl), up to 8 heads |
| Max. Media Width | 3300 mm (approx. 10 ft) |
| Printing Technology | Piezoelectric inkjet (solvent) |
| Ink Type | Solvent ink (Konica-certified) |
| Colours | CMYK, 4 colours |
| Printing Resolution | Up to 720×1440 dpi |
| Control System | BYHX |
| RIP Software | UltraPrint / MainTop 6.1 / PhotoPrint |
| Drive & Motor | Leadshine servo |
| Ink Pump | SPD ink pump, positive pressure |
| Heating & Drying | Pre / bed / rear heaters + IR drying fans |
| Interface | LAN / USB |
| Power Supply | AC 220 V ± 10%, 50/60 Hz |
| Weight | approx. 975 kg (configuration dependent) |
| Operating Environment | 15–30 °C, 40–65% RH |
Applications
Typical work: flex banners, vinyl hoardings, self-adhesive vinyl, one-way vision film, mesh, backlit flex, coated banner, PVC and PP media, canvas and fabric backdrops. The machine is at home in flex printing units, signage fabricators, advertising agencies and in-house brand print rooms.
Why Buy from Unified Engineering Dynamics?
- Authorized Grando supply in India – genuine machines with official configuration, not grey-market refits.
- Complete installation & training – on-site setup, RIP software installation, media profiling and operator training included.
- After-sales support – Indian service engineers, genuine spare parts and print heads in stock, remote diagnostics.
- Consumables supply – matched eco-solvent inks, cleaning solution and spares available from our Printing Inks and Printer Spare Parts range.
Need the latest price, a demo print or an EMI quotation? Contact our team today – we reply within one working day with a detailed offer including installation and ink start-up kit options.

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