CTY, CTD or CDD? Engineering Comparison of Three Sinolift Paper Roll Lifters

CTY1000-M700: simple lifting for occasional handling

The CTY1000-M700 uses a hand pump for lifting and a manual push-pull handle for travel. Its published reference data includes 1,000 kg capacity, 854 mm maximum platform elevation, 800 mm maximum roll diameter, 1,400 mm maximum roll width, 1,180 mm frame height, 660 mm frame width and 208 kg weight. It can be a starting point when rolls move occasionally over a short, smooth route. The engineering review must still confirm loaded push force, thresholds, ramps and movement frequency.

CTD1000-M700: powered lifting with manual movement

The CTD1000-M700 adds powered lifting while retaining manual travel. The standard reference lists 1,000 kg capacity, 841 mm maximum plate lift, 500 mm barycentre, 1,000 mm maximum roll diameter, 1,500 mm maximum roll width and 285 kg weight. Its bracket pallet and electronic lock-and-protect concept are intended for cylindrical cargo. It suits workflows where lifting and lowering create the main strain, while direct manual travel control remains useful in a compact indoor route.

CDD1000-M700: powered lifting and electric travel

The CDD1000-M700 provides electric lifting and electric walkie travel. Published reference information lists a 1,000 kg version, 800 to 1,400 mm available reel diameter, 465 mm load centre, 1,220 mm cradle lifting height, 1,200 mm minimum turning radius, 24 V battery power and 364 kg service weight including battery. It is a stronger candidate for frequent internal movement and repeatable positioning, subject to battery duty cycle, route clearance and final load-interface confirmation.

Match the drive system to the work

Where procurement decisions become operational decisions

Printing and converting plants move rolls from storage to printers, slitters, laminators and coating lines. The challenge is controlled approach, surface protection and repeated positioning, not lifting alone. Packaging plants add wide film and foil rolls, where visibility, support geometry and narrow aisles matter. Paper warehouses may require longer routes, more transfers and battery planning.

Start with the heaviest gross roll, including core, wrapping and protection. Measure outside diameter, width, core, centre of gravity and approach direction. Then map the complete route, including the narrowest aisle, doorway, turn, ramp, floor joint and final machine position. The roll projection must be included in the equipment envelope.

Match the drive system to workload

Choose CTY when handling is occasional, travel is short and the floor is smooth. Its manual hydraulic system avoids battery management, but the buyer should assess loaded push force. Choose CTD when lifting creates the main effort but travel remains short and manually controlled. It is often a balanced option for nearby machine loading. Choose CDD when transfers are frequent, positioning is repetitive or the route is longer. Electric travel can reduce effort and improve repeatability, but charging, training and service access must be planned.

Compare total workflow cost, not purchase price alone. Include operator time, manual effort, battery charging, maintenance, roll damage risk and interruptions to machine feeding. The most advanced model is not automatically the best model; the operating frequency must justify the added system complexity.

Use the real load and route to close the decision

Before ordering, provide weight, diameter, width, core, centre of gravity, lift height, pickup method, route dimensions and movements per shift. Request the final drawing and confirm which values are catalogue references and which are guaranteed for the quoted configuration. At delivery, verify the model, inspect the roll-support structure, test controls and conduct a controlled trial at the narrowest route point.

CTD roll lifter configuration and application context

The first two images show the supplied CTD roll lifter in a factory shipment context, including the blue frame, front support area, mast, controls and protective structure. The following images show broader roll-handling application context for the same product family. They are included to help buyers inspect the equipment layout and industrial use, not as proof of one customer result.

Engineering questions