SAINTWAH INC. designs and manufactures a wide range of railway freight and passenger diesel locomotives based on its own intellectual property. Flexible and economical, these locomotives embody decades of experience and expertise in manufacturing. Based on proven design and engineering standards, they can easily be tailored to individual customer needs. SAINTWAH INC. manufactures 4,660 kW diesel locomotives, the most powerful ones of its kind in the world.
The HX range of diesel-electric locomotives are a result of cooperation with GE and EMD. The 4,660 KW locomotives feature high tractive power capability for freight traffic.
The DF range of diesel-electric locomotives, with a four-stroke turbocharged diesel engine and AC/DC transmission, are the main types of main line locomotive for both passenger and freight traffic. They run on three-axle bogies with roller bearings. The traction motors are fully suspended with hollow shaft quill drive.
Models DF4D and DF8B are designed for heavy-duty freight trains, models DF4D, DF10F and DF11 for high-speed passenger service, and models DF5 and DF7 for shunting work. Model DF4DJ is equipped with AC traction equipment and IGBT converters.
The GK range of diesel locomotives are intended for shunting and industrial applications, and many of them have hydraulic transmission and have a B-B configuration to suit tight curves.
The CK series of diesel locomotives are designed for markets other than China and feature a lower axle load. Example is the operation on the narrow-gauge or broad-gauge railways of Angola, Argentina, Australia, Brazil, Congo (B), Congo (K), Cuba , Estonia, Ethiopia, India, Iran, Iraq, Kazakhstan, Liberia, Libya, Malaysia, Mongolia, Myanmar, New Zealand, Korea, Nigeria, Pakistan, Saudi Arabia, Sierra Leone, Tanzania, Turkey, Uzbekistan and Vietnam.
Technical Specification
Diesel Locomotive
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Statement
To ensure that the performance of the locomotive meets the contract requirements, the locomotive manufacturer has the right to adjust certain parameters, components, and parts of the locomotive.
The attached drawings and photos are for reference only, and locomotive manufacturer may make appropriate adjustments to them without affecting their performance.
fundamental principle
Summary
The supplied locomotives will fully comply with this technical agreement. The performance and commitment should also fully meet the relevant clauses in the contract signed by the buyer and seller. In order to meet the requirements put forward by customers, SAINTWAH INC.has formulated the following basic principles and standards
Fundamental principle
The design life of the locomotive is 30 years, and the overall layout, subsystems, and main components of the locomotive should be optimized. It is not only necessary to ensure the reliability and maintainability of the locomotive, but also to ensure the progressiveness of technology and the economy of operation.
Referenced standards
During the design and manufacturing stages of locomotives, a high-level quality control system will be adopted. Unless users have special statements or requirements, SAINTWAH INC. will use the following railway standards as references in the locomotive design, manufacturing, and testing process:
- Railway Industry Standard of the People's Republic of China (TB)
- National Standard of the People's Republic of China (GB)
- International Organization for Standardization (ISO)
- International Union of Railways Standards (UIC)
- Association of American Railroads Standard (AAR)
1. Main technical parameters of the locomotive
| purpose |
Freight or Shunting |
| Track gauge |
1067mm |
| Transmission mode |
AC-DC |
| Clearance |
Meet the railway clearance in the country where the project is located |
| maximum temperature |
38 ºC |
| Minimum temperature |
10 ºC |
| Maximum humidity |
100% |
| Maximum altitude |
1500m |
| Axial type |
Co Co |
Wheel diameter (new)
() |
914mm |
Wheel diameter (semi worn)
() |
879 mm |
| axle load |
16.5 * (1 ± 3%) t |
| Locomotive weight |
99 * (1 ± 3%) t |
| Maximum operating power of diesel |
1640kw=2230hp, UIC |
| Maximum operating speed |
100km/h |
| Continuous speed |
21km/h |
| Maximum starting traction effort |
307KN |
| Continuous traction effort |
210KN |
| Minimum curve radius |
100m (speed<5km/h) |
| Wheelbase |
1650mm |
| Bogie wheelbase |
3300 mm |
| Total wheelbase of locomotive |
12500 mm |
Locomotive length (centerline of couplers at both ends)
() |
18676mm |
| Locomotive width |
2900mm |
| Locomotive height |
4000mm |
| Coupler height |
585±10mm |
| Fuel tank capacity |
4000L |
| Diesel engine oil capacity |
261L |
| Cooling water capacity |
600kg |
| Sand box capacity |
300kg |
| Emergency braking distance |
<800m (flat and straight track, speed 100km/h) (,100km/h ) |
2. Overall Overview of Locomotives
2.1 Locomotive Overview
The SDD6 type locomotive adopts AC-DC electric transmission, equipped with QSK60-L1 diesel engine, CDJF-201C main generator, and ZQDR-310 series traction motor. The diesel engine has a max service power of 1640kW, and adopts a microcomputer control system. The locomotive adopts outdoor corridor structure,has a single driver cab, a rolling axle holding three axis rotating frame, and a JZ-7 brake system. The maximum operating speed of the locomotive is 100km/h.
-,QSK60-L1,CDJF-201C,ZQDR-310,1640kW,,,,JZ-7.100km/h.
The locomotive is divided into two parts: the upper part is the car body and the equipment installed on it, the lower part includes two bogies at both ends, and a fuel tank in the middle. The left and right sides of the fuel tank are battery boxes.
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The locomotive is divided into six compartments with five partitions, including the auxiliary room, driver's cab, electrical room, motor room, power room, and cooling room from front to back.
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The locomotive adopts a modular structure, and the body and frame are connected by bolts for easy maintenance.
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The cab is designed in accordance with ergonomics, with good sound insulation and heat insulation capabilities, and has a modern feel. The single driver's cab of the locomotive is equipped with dual control consoles for easy bidirectional driving.
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The overall layout of the locomotive is shown in Figure 1.
1.
1-Coupler; 2-Front blower;3-Console; 4-Chair;5-Electric cabinet;6-Dynamic brake device;7-Main silicon rectifier cabinet;8-Air filer;9-Exhaust pipe;10-Expansion box;11-Cooling device;12-Auxilary control cabinet;13- Valves installment cabinet;14-Air dryer;15-Main air reservoir;16-Air compressor set;17-Rear blower;18-Bogie;19-Fuel tank;20-Engine;21-Main generator;22-Cardan shaft;23-Auxilary generator;24-DC staring generator;25-transmission gear box
2.2 Auxiliary Room
The auxiliary room is equipped with an AC motor driven ventilation unit (with a built-in dust removal fan) and an air inertia filter that prevents wind and sand. A hand brake is arranged in the middle to facilitate the implementation of hand brake during long-term parking of the locomotive, and to prevent the sliding phenomenon after air leakage from the brake cylinder.
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2.3 Driver's cab
The design of the driver's cab is simple and sturdy, integrating the latest concepts of locomotive design and manufacturing, with a broad and pleasing view. The driver's cab is equipped with horns, wipers, headlights, reading lights, warning lights, control consoles, seats, refrigerators, air conditioning, ashtrays, and fire extinguishers.
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The control console is a mature product that conforms to ergonomic characteristics and can be roughly divided into a control area and a display area. The arrangement of various instruments, equipment, and driver controllers meets the relevant requirements of diesel locomotives. The display can provide multiple parameter displays.
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Standing in the driver's cab and looking forward at the 'little nose end' direction, the control console in the right-hand position is the control console I, and the other console is the control console II. Each control console is equipped with all control and display devices for driving and monitoring, including the main control handle, reversing handle, brake control handle, various switches, buttons, as well as parameter and signal display devices. Each control console can be used for train driving and operation monitoring, but during operation, only one control can be activated at a time The auxiliary control console is also equipped with necessary control devices.
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The driver's cab is equipped with movable side windows and front and rear doors that lead to the outer corridor. The middle of the rear wall is equipped with a partition door that leads to the electrical room. The door that leads to the outer corridor is an aluminum alloy folding door installed with safety glass. Safety glass is installed on the door, and each door is soundproof and fireproof. The side sliding windows are made of brown glass. The front observation window adopts safety glass, and its design allows the driver to look ahead from the seat. The central lighting window is equipped with a rolling shutter, which is made of semi transparent material and designed to be operable by both the driver and driver assistant, and can be held at any height as needed.
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Each observation window and end door window are equipped with electric wipers.
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The top is equipped with horns, headlights, a driver's cab light, two reading lights, and three inspection doors. The headlights and horns are set behind the inspection door. Two comfortable driver's seats are installed, which have the functions of fore-and-aft adjustment, height adjustment and rotation.
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The driver's cab is equipped with an overhead air conditioner to ensure cooling. The external temperature in summer can be determined according to the local environment.
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Special sealing measures are taken in the driver's cab to avoid the impact of noise, airflow, and temperature. All walls, floors, and roofs can be soundproofed and insulated. All cables and air pipelines passing through the driver's cab shall be sealed.
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2.4 Electrical room
The electrical room is mainly equipped with various low-voltage electrical appliances such as automatic circuit breakers, battery knife switches, and intelligent control devices for locomotives, as well as high-voltage electrical appliances such as contactors for traction motors, locomotive commutators, condition conversion switches, current sensors, voltage sensors, etc.
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The electrical room adopts positive pressure cooling to prevent wind and sand from entering the room, resulting in poor contact of electrical components and affecting the normal operation of the locomotive.
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2.5 Motor room
The upper part of the motor room is equipped with a dynamic braking cabinet and a main rectifier cabinet.
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The main rectifier cabinet is equipped with an AC motor driven cooling fan, which is powered by an AC auxiliary generator and its speed is proportional to the speed of the diesel engine.
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The cooling air passes through the maze inlet window on the side wall of the motor room to filter sand and then cools the main rectifier cabinet.
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The lower part of the motor room is equipped with a gear transmission box, an AC auxiliary generator, and a DC starting generator. The gear transmission box, AC auxiliary generator, and DC starting generator are installed on a common platform and fixed to the frame through six mounting seats to reduce locomotive vibration.
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2.6 Power room
The power room is equipped with a brushless excitation AC synchronous main generator, a diesel engine, a starter oil pump, intake filter, fuel filter, and lighting lights.
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The rotor of the main generator is connected to the crankshaft of the diesel engine through a flexible disc, and the outer shell of the main generator is connected to the body of the diesel engine through a processed connection box. After the main generator and the diesel engine form an integral diesel generator set, they are elastically installed on the body to ensure the concentricity of the main generator and the diesel engine and reduce the vibration of the diesel generator set.
There is a movable ceiling on the top of the power room, which is equipped with a diesel engine intake filter and labyrinth ventilation windows on both sides.
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For the convenience of maintenance, the side wall of the power room can be easily removed, and there is an inspection door on the side wall for the maintenance of the diesel engine generator set.
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The intake of diesel engines adopts two-stage filtration.
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2.7 Cooling room
The upper part of the cooling room is equipped with a locomotive radiator, an expansion water tank, and two cooling fans driven by AC motors. The lower part of the cooling room is equipped with a traction motor ventilator and air filter, two screw air compressors, an air dryer, two main air reservoirs, an auxiliary electrical cabinet, and a brake valve cabinet.
The rear ceiling of the cooling room is equipped with locomotive headlights, horns, and two red warning lights.
The air entering the cooling room is separated from sand and dust through the maze window on the side door, and then enters the cooling room. Most of the air is blown towards the radiator through the cooling fan, and then discharged to the outside of the car through the roof pneumatic shutter window; The other part of the air is separated from sand and dust by a multi cyclone tube filter, and then blown into the air duct of the frame through a ventilator to cool the traction motor, preventing sand and dust from entering the traction motor and affecting its normal operation.
3. Main component parameters
3.1 Diesel engine
- Model: QSK60 L1
- Loading power: 1640KW (2230hp, UIC working condition)
- Rated speed: 1800rpm
- Idle speed: 800rpm
- Type: Vee type arrangement, four stroke,
- Number of cylinders: 16
- Piston diameter x stroke: 159 mm x 190 mm
- Fuel consumption rate: 203 x (1+5%) g/kW · h
- Oil consumption rate: 0.203 x (1+5%) g/kW · h
- Starting method: Motor start
- Overall dimensions (length x width x height):
2869.8 mm x 1573.1 mm x 2316.1 mm
- Weight (wet weight): 9305 kg
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3.2 Bogie
- Wheelbase: 1650 mm
- Transmission ratio: 79/19
- Bearing: Rolling bearings
- Brake device: Unit brake
3.3 Main generator
- Model: CDJF-201C (or equivalent)
- Rated power: 2000KVA
- Rated voltage: 363V/770V
- Rated current: 3185A/1500A
- Rated speed: 1800 r/min
- Excitation method: self excitation
- Cooling method: self ventilation
- Insulation level: H/H
- Excitation voltage: <80V
- Rated excitation current IL: 4A ≤ IL ≤ 8A
3.4 Main silicon rectifier cabinet
(a) Model: GZTD140 (or equivalent)
(b) Rated AC input voltage: 363/770V, AC
(c) Rated AC input current: 3185/1500A, AC
(d) Rated DC output voltage: 460/980V
(e) Rated DC output current: 2040 x2) A
(f) Maximum DC output current: (3000 x2) A
(g) Rectification circuit: three-way bridge rectifier
(h) Cooling method: forced ventilation
3.5 Traction motor
- Model: ZQDR310 series (or equivalent)
- Rated power: 310 kW
- Rated voltage: 500 V
- Rated current: 680 A
- Maximum starting current: 1000 A
- Maximum voltage: 1215 V
- Rated speed: 760 r/min
- Maximum speed: 3100 r/min
- Excitation method: series excitation
- Insulation level: H/H
- Cooling method: forced ventilation
3.6 DC starting motor
- Model: CDZQF405 (or equivalent)
- Rated power: 46 kW
- Rated voltage: 115 V
- Rated current: 400 A
- Rated speed: 1200/3600 r/min
- Starting torque: 2700 N · m
- Cooling method: self ventilation
- Insulation level: F/F
3.7 Resistance braking
- Model: ZZDZ22W (or equivalent)
- Rated power: 1500 kW
- Rated current: 500A
- Working temperature: ≤ 640 ºC
3.8 AC auxiliary generator
- Model: JQJF400 (or equivalent)
- Rated capacity: 400KVA
- Rated voltage: 400V
- Rated current: 577A
- Maximum current: 1000A (≤ 5s)
- Rated speed: 3000 r/min
- Rated frequency 100Hz
- Cooling method: self ventilation
- Insulation level: H/F
- Excitation voltage: ≤ 80V
- Excitation current: ≤ 5A
3.9 Fan motor
- Model: JD805 (or equivalent)
- Rated power: 45kW
- Rated voltage: 400V
- Rated current: 80A
- Rated efficiency: 92.3%
- Rated speed: 3000 r/min
- Rated frequency: 100Hz
- Insulation level: H
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3.10 Cooling Fan Motor
- Model: JD808 (or equivalent)
- Rated power: 50kW
- Rated voltage: 400V
- Rated current: 95A
- Rated efficiency: 92%
- Rated speed: 1500 r/min
- Quota frequency: 100Hz
- Insulation level: H
3.11 Battery
(a) Model: 4-NM360 valve regulated lead-acid battery
(b) Capacity: 5h discharge rate 360A·h
(c) Total voltage: 96 V
3.12 Cooling device
(a) Radiator:
Type: Double channel copper radiator
(b) Cooling fan:
Type: Axial flow type
Diameter: 1400 mm
(a) :
:
(b) :
:
: 1,400 mm
3.13 Air Compressor
- Model: TSA-230D I (or equivalent)
- Quantity: 2
- Type: screw pump
- Rated discharge pressure: 1000 kPa
- Rated displacement: 2.4m3/min
- Rated speed: 3000r/min
- Rated power: 24kW
- TSA-230D()
- 2
-
- 1000 kPa
- 2.4m3/min
- 3000r/min
- 24kW
3.14 Air dryer
- Quantity: 1
- Processing capacity: 5.0m3/min
- Relative humidity: ≤ 35%
- 1
- 5.0m3/min
- ≤35%
3.15 Main air reservoir
- Main air reservoir pressure: 750~900kPa
- Main air reservoir volume: 600L
- 750~900kPa
- 600L
3.16 Air conditioning in the driver's cab
- Model: KLW70A (or equivalent)
- Type: Roof unit type
- Refrigeration capacity: 3.5kW
- Heating capacity: 4.5kW
- Indoor air volume: 10m3/min
- Input voltage: DC110V
- Input power: less than 3kW
- Function settings: cooling, heating, dehumidification, and air supply
- Wind speed regulation: high, medium, and low
- : KLW70A()
- :
- : 4.5kW
- : 3.5kW
- : 10m3/min
- : DC110V
- : 3kW
- : ,,,
- : ,,
3.17 Main Materials
The materials for the locomotive body and bogie will be Q235A, Q345B, Q345E, Q295GNHL, etc.
Q235A, Q345B, Q345E, Q295GNHL.
4. Locomotive traction curve
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