1. Identification and General Information

This document details the technical specifications of Hyundai's 7E-series diesel forklifts, specifically models 50DS-7E, 60DS-7E, and 70DS-7E. These forklifts are diesel-powered, designed for seated operation, with load capacities ranging from 5,000 kg to 7,000 kg.

2. Basic Dimensions and Weights

Key dimensions include a load center distance of 600 mm, load distance from drive axle to fork between 605 and 615 mm, and a wheelbase of 2,300 mm. Service weights vary by model: 8,602 kg (50DS-7E), 9,245 kg (60DS-7E), and 9,871 kg (70DS-7E). Axle loadings and track widths are specified, with pneumatic tires sized 8.25-15-14 on both front and rear wheels.

3. Performance Data

Travel speeds unloaded are approximately 35.2 to 35.5 km/h. Lift speeds range from 430 to 480 mm/s (loaded/unloaded), with lowering speeds around 450 to 500 mm/s. Drawbar pull loaded is approximately 5,910 to 5,962 kg. Gradeability under load varies from 36.5% to 46.2%, depending on the model. Hydraulic foot brakes are used for stopping.

4. Engine and Drive System

All models use the MHI S6S-T turbocharged six-cylinder diesel engine, producing 67.7 kW at 2,300 rpm with a displacement of 4,996 cm³. Fuel consumption ranges from 5.2 to 5.4 liters per hour. The drive system is fully automatic with hydraulic controls operating at 185/150 bar pressure and 94 liters oil volume. Noise levels at the operator’s ear measure 82 dB(A).

5. Hydraulic and Steering Systems

The forklifts feature a large-capacity hydraulic system designed for quick response and low noise. Mast tilt angles are 15° forward and 10° backward. Power steering is fully hydrostatic, providing smooth, flexible control without kick-back. Optional wet disc brakes offer maintenance-free, dust and water-protected braking.

6. Mast and Fork Specifications

Mast options include 2-stage limited free lift and 3-stage full free lift, with maximum fork heights ranging from 2,730 mm to 6,030 mm depending on the mast type. Fork dimensions vary by model and type, with shaft and hook types available. Load capacities are detailed for various load centers and mast heights, ensuring safe handling of loads up to 7,000 kg.

7. Operator Comfort and Safety Features

Ergonomic features include an adjustable steering wheel with horn, easy and safe shift lever, multi-function switch lever, and ergonomically positioned pedals to reduce fatigue. The overhead guard is fully floating with anti-vibration mounts to minimize noise and vibration. Visibility is enhanced by a wide-view mast and bright, protected headlights and rear working lights. Additional amenities include cup holders, console boxes, and optional Grammer seats with heating and adjustable armrests.

8. Safety and Durability

Safety systems include an Operator Presence Sensing System (OPSS) that disables mast controls when the operator is not seated, a fuel tank safety valve to prevent leaks during overturns, and a robust overhead guard exceeding EEC and ANSI standards. The frame is a heavy-duty single unit designed for durability. The parking brake is a toggle type requiring minimal effort. The drive axle is a durable split type with powershift transmission for quiet and efficient travel.

9. Maintenance and Serviceability

Maintenance is facilitated by centralized electrical components for easy access, an electrically monitored air filter with sensor alerts, visible pre-cleaner, and easily accessible brake fluid reservoir. The engine oil condition can be checked easily. The engine compartment features a large open hood held by a self-locking gas spring. Fuel filter replacement, radiator servicing, and battery maintenance are simplified. Additional toolboxes and fuse boxes improve service convenience.

10. Load Capacity Charts and Mast Details

Detailed load capacity charts specify safe load limits at various load centers (600 mm to 1,600 mm) and mast heights for each model. Mast tilt angles and free lift heights are specified for different mast types. Fork specifications include dimensions and types suitable for different operational needs.

11. Equipment Features and Optional Attachments

Main features include an integrated hose-reel for hydraulic hose management, integral fork positioner carriage for adjusting fork spacing, integral side shift carriage for lateral fork movement, and a combined side shift with fork positioner for enhanced versatility.

Optional attachments available to customize the forklifts include side shift, hinged fork, hinged bucket, rotating fork, push pull, rotating roll clamp, carton clamp, pallet invert, drum clamp, bale clamp, load extender, fork positioner, and load stabilizer. These attachments increase operational flexibility and enable handling of diverse load types.

Critical Information Summary

• Load capacities: 5,000 kg (50DS-7E), 6,000 kg (60DS-7E), 7,000 kg (70DS-7E)
• Engine: MHI S6S-T, 67.7 kW, turbocharged diesel, EPA Tier III / EU Stage IIIA compliant
• Hydraulic system: Large capacity, low noise, operating at 185/150 bar pressure
• Mast tilt: 15° forward, 10° backward
• Travel speed: Approximately 35 km/h unloaded
• Gradeability: Up to 46.2% loaded
• Safety: Operator Presence Sensing System, fuel safety valve, robust overhead guard
• Operator comfort: Ergonomic controls, adjustable steering, vibration reduction
• Maintenance: Centralized components, easy access, monitored air filter

Overall, the Hyundai 7E-series diesel forklifts are powerful, safe, operator-friendly, and designed for easy maintenance, making them suitable for demanding industrial material handling applications.