Crane Selection for Ink & Printing Material Plants
Crane systems for ink and printing consumables plants are configured around four process stages: resin grinding, pigment mixing, finished-product filling, and warehousing/logistics. The resin grinding area uses an explosion-proof LD-type crane (3–5 t, Ex d IIB T3) to prevent pigment dust accumulation; the pigment mixing area is served by an LD-type crane (3–5 t) with stainless steel anti-corrosion protection; the filling line is equipped with a KBK workstation crane (0.5–2 t); and the warehouse uses an LD-type crane (3–5 t) rated for ambient temperature and moisture protection. Total plant investment ranges from $15,000 to $60,000, and the pigment workshop requires integration with a dust collection system.
Resin Grinding Area: Explosion-Proof Crane Configuration
Resin grinding for ink production is a critical process in which resin pellets are milled in a three-roll mill or bead mill to a fineness of ≤15 μm. Grinding mills typically weigh between 1 and 5 tons. Because organic solvents (alcohols, esters, ketones) are used during grinding, the workshop is classified as an explosion-proof zone. The recommended solution is an LD-type explosion-proof crane rated 3–5 t, Ex d IIB T3. Ink pigments (carbon black, color powders) used in the grinding area have very fine particle sizes (100 nm–10 μm) and tend to disperse and settle easily. The crane's electrical cabinet must be sealed and dustproof (IP5X), and the motor must be fully enclosed to prevent pigment ingress that could cause short circuits. Kelude equips cranes for ink grinding areas with pigment protective covers and sealed electrical enclosures as standard. The grinding area must also be interlocked with the workshop's dust collection and recovery system—when the crane is in operation, the dust hood over the grinding zone opens automatically.
The front, center, and rear roller assemblies of the three-roll mill are the core components of the grinding area. Each roller weighs between 300 and 1,500 kg, so the crane must provide coverage over the roller replacement zone. Roller replacement is typically required every 3–6 months. Kelude recommends a two-speed hoisting configuration of 6/1.5 m/min for cranes in the grinding area. Hydraulic cylinder maintenance on the mill's hydraulic system involves components weighing 200–500 kg, requiring crane assistance. Investment for a grinding-area crane typically ranges from $18,000 to $45,000. For grinding workshops that use water-based (solvent-free) inks, a non-explosion-proof LD-type crane can be used, reducing investment by approximately 30%.
Pigment Mixing Area: Corrosion-Resistant Stainless Steel Hoisting
Ink color mixing combines pigment powders with binder oils or resin varnishes in mixing kettles. These kettles are made of stainless steel 304/316L, with capacities ranging from 500 to 3,000 L and weights from 0.5 to 3 tons. Cleanliness requirements in the mixing workshop are higher than in the grinding area (less pigment exposure), but dust control measures are still necessary. The recommended solution is an LD-type crane (3–5 t) with a stainless steel lifting spreader. Ink mixing raw materials—binders, solvents, and additives—are delivered in drums, with frequent handling of standard 200 L drums. A KBK workstation crane (0.5–1 t) is recommended in the mixing area for bulk bag and drum loading. Kelude offers a combined LD-type + KBK configuration for mixing areas. Agitator maintenance in mixing kettles is infrequent (1–2 times per year), so crane coverage over the kettle top maintenance space is sufficient. Investment for a mixing-area crane typically ranges from $15,000 to $37,000.
The color matching system in the mixing area uses automatic color dispensers and metering pumps—precision equipment that is relatively light (100–300 kg) and can be serviced with KBK assistance during maintenance. Kelude recommends an anti-corrosion floor treatment (epoxy self-leveling) in the mixing area. A column-mounted jib crane (125–250 kg) is suggested for the raw material drum storage zone to facilitate drum loading and unloading. Processes in the mixing area that use volatile solvents must still be managed as explosion-proof zones. For water-based ink mixing areas, no explosion-proof rating is required, and Kelude can supply a standard cleanroom-type crane solution.
Finished-Product Filling Area: KBK Workstation Crane System
Finished ink products are filled in 1 kg cans, 5 kg pails, 20 kg drums, and 200 L drums. The complete filling line—filling machine, capping machine, labeling machine, and weighing system—has a total weight of 500–2,000 kg. A KBK workstation crane system (0.5–2 t) is the recommended solution. Filling nozzles require frequent cleaning (once per color change), so the KBK crane provides full coverage along the entire filling line, allowing nozzle assemblies (10–30 kg) to be quickly transported to the cleaning station. Kelude supplies KBK rails in stainless steel for filling areas. Color changeover efficiency is critical on ink filling lines—multiple fixed lifting points are positioned along the KBK rail so that changeover tools can be pre-hung and pulled directly to the target station when needed. Explosion-proof classification for the filling area: the area near solvent-based ink filling heads is classified as Zone 1 and requires explosion-proof equipment.
Palletizing of filled products is typically done manually with hydraulic pallet trucks. For 200 L drums (each weighing 200–300 kg), a column-mounted jib crane (250–500 kg) is recommended at the end of the filling line for drum palletizing. Kelude's filling-area solutions typically represent an investment of $7,500 to $22,000. Ink packaging lines require a high degree of flexibility, and the KBK system must accommodate rapid changeovers between different package sizes—Kelude's KBK hoists feature adjustable lifting speeds and rail positioning. For high-volume single-color filling lines, an automated filling and palletizing line can be used, with the KBK system reserved for maintenance support.
Warehouse and Logistics: Color-Coded Material Management System
Warehouse management for finished ink products centers on color-code classification and batch traceability. Ink warehouses typically use high-bay racking (6–12 m in height) with storage organized by color family. An LD-type crane (3–5 t) is recommended to cover both the warehouse and shipping areas. The crane's lifting height must be at least 2 m above the top of the racking (accounting for spreader length plus safety margin). Temperature and humidity control in the ink warehouse (15–30 °C, humidity ≤70%) affects ink viscosity and shelf life but does not require refrigeration. Kelude warehouse cranes can be optionally equipped with WMS outbound scanning verification—before each lift, the pallet barcode is scanned, and the system automatically matches it against the outbound order; if the scan does not match, the crane will not operate. Investment for a warehouse-area crane typically ranges from $12,000 to $30,000.
Resin Grinding LDExplosion-proof3-5t Ex d IIB T3+Dustproof | Pigment Dispensing LD Type3-5t Stainless Steel+KBKRaw Material Feeding | Filling KBK 0.5-2t Stainless Steel Rail |
Warehousing LD Type3-5t WMS+Barcode Scanning | Color Powder Dustproof sealed electrical enclosure+Dust Collection Interlock | total plant investment 10-40All-Inclusive Process |
Crane Configuration Comparison for Ink & Printing Consumables Manufacturing
| All-Inclusive Process | Machine Model | tonnage | Explosion-proof | Specialconfiguration | investment |
|---|---|---|---|---|---|
| Resin Grinding | LDExplosion-proof | 3-5t | Ex d IIB T3 | Color Powderguards+Dust Collection Interlock | 12-30Universal |
| Pigment Dispensing | LD+KBK | 3-5t | On-Demand | Stainless Steel+Drum Feeding | 10-25Universal |
| Filling | KBK | 0.5-2t | On-Demand | Stainless Steel Rail+Slewing Jib Palletizing | 5-15Universal |
| Warehouse | LD Type | 3-5t | Standard | WMS+Scan-to-Confirm | 8-20Universal |
| complete plant | Combination | 0.5-5t | Zoning | Fullcoverage | 10-40Universal |
Kelude Heavy Industry provides crane solutions for the ink and printing consumables manufacturing sector, covering every stage from explosion-proof grinding and anti-corrosion mixing to KBK filling lines and smart warehousing. From the risk of electrical shorts caused by dust accumulation from color pigments, to the safety requirements of explosion-proof solvent handling, and the different crane selection logic for water-based versus solvent-based inks—Kelude has it all covered.
Explosion-proof Dustproof Dual Redundancy Ex d IIB T3Explosion-proof+Color Powder Protective Cover+Sealing IP5X, Ink Grinding Zoneelectrical safety Zero Blind Spot | Flexible Filling Solution KBKStainless Steel Rail+Pneumaticdynamic balancing Slewing Jib Palletizing+Rapid Color Change Lifting point, filling lineefficiency improvement30% | Smart Warehousing Docking WMSBarcode Scanninginterlock+Batchtraceability+High-Rise Rackingcoverage, Warehouse Near-Zero Inventory Error Rate |
FAQ: Ink Grinding, Filling & Warehouse Crane Configurations
Q: Why do cranes in the ink grinding area require both explosion-proof and dustproof protection?
A: The organic solvents (alcohols/esters) used in grinding create an explosive gas atmosphere, requiring explosion-proof equipment. Pigment dust (carbon black/colorants) can enter the electrical cabinet and cause short circuits or trips. Kelude's cranes for ink grinding areas are designed to meet both protection requirements simultaneously.
Q: Is the crane configuration the same for water-based and solvent-based ink workshops?
A: No. Water-based ink workshops (solvent-free) do not require explosion-proof protection and focus on clean, dustproof operation. Solvent-based ink facilities (containing VOCs) must use explosion-proof equipment rated Ex d IIB T3. Kelude provides tailored configuration solutions based on the specific ink type.
Q: How does the KBK system support color changes on the ink filling line?
A: Color changes require swapping the filling nozzles, piping, and pump bodies. Multiple lifting points are pre-positioned along the KBK rail, with changeover tools stored overhead. The operator simply pulls the KBK hoist to the target station and lifts the tools to the filling machine. This reduces changeover time from 30 minutes down to 15 minutes.
Q: Is WMS barcode scanning with interlock necessary in the ink warehouse?
A: With hundreds of ink shades that look nearly identical, manual picking error rates run around 2–5%. WMS barcode scanning with interlock eliminates these errors entirely. Each scanning system costs roughly $1,500–$3,000 and typically pays for itself within 6–12 months through reduced returns and rework.
