Product Feature
Electric Tow Tractor QB50/60-SA
Safe & Durable
• The application of hand brake and hydraulic brake improve the safety level.
• Stepless speed control.
• Equipped with adjustable steering wheel, adapted to different operators.
• Advanced link system, oriented and fixed bracket.
Convenient and Manipulation
• Low noise.
• CANbus technology reduces wiring complexity and increase reliability.
• Multi-function display: battery status, hour meter, error code etc.
•
Easy-open back cover to open for maintenance and replacement of parts
such as drive wheel, oil tube. accelerator. controller etc.
Advanced Design
• "H" type axle design gives a good stability.
• Batteries located in the lowest part of frame,low center of gravity ensures excellent stability.
• Automatic reset make operation easier.
Product Parameter
| Characteristics | 1.1 | model | QB30-SA1 | QB50-SA1 | |
| 1.2 | drive tyoe | battery | battery | ||
| 1.3 | operator type | seated | seated | ||
| 1.4 | rated traction weight | kg | 3000 | 5000 | |
| 1.5 | drawbarpull(60mins) | N／kg | 750／75 | 1250／125 | |
| 1.6 | drawbarpull(5mins) | N／kg | 3000／300 | 5000／500 | |
| 1.7 | drawbarcenter height | h1／h2（mm） | 280／350 | 280／350 | |
| capacity | 2.1 | weight | kg | 980 | 1160 |
| 2.2 | axle loading front | kg | 350 | 410 | |
| 2.3 | axle loading rear | kg | 630 | 750 | |
| wheels | 3.1 | tyre number,front/rear,x=driving wheels | ×=driviing wheel | 1／2X | 1／2X |
| 3.2 | tyre size ,front | solid rubber | 15*4 ½-8 | 15*4 ½-8 | |
| 3.3 | tyre size ,rear | solid rubber | 15*4 ½-8 | 4.00－8 | |
| dimention | 4.1 | wheel base | L1 (mm) | 1170 | 1280 |
| 4.2 | backward overhang | L2 (mm) | 350 | 450 | |
| 4.3 | tread ,front | W2 (mm) | 0 | 0 | |
| 4.4 | tread ,rear | W1 (mm) | 860 | 946 | |
| 4.5 | seat height | h3 (mm) | 850 | 910 | |
| 4.6 | whole length | L (mm) | 1720 | 1940 | |
| 4.7 | whole width | W (mm) | 970 | 1100 | |
| 4.8 | whole height | h | 1250 | 1250 | |
| 4.9 | approach angle ɑ1 | ° | ≥45° | ≥45° | |
| 4.1 | departure angle ɑ1 | ° | ≥40° | ≥40° | |
| 4.11 | min ,ground height | X (mm) | 90 | 90 | |
| 4.12 | min,turning radius | Wa (mm) | 1515 | 1650 | |
| performance | 5.1 | travel speed ,laden | km/h | 7 | 8 |
| 5.2 | travel speed ,unladen | km/h | 13 | 14 | |
| 5.7 | max.gradeability,laden | % | 6 | 6 | |
| 5.8 | max.gradeability,unladen | % | 15 | 15 | |
| 5.11 | brake | mechanical ,hydraulic | mechanical ,hydraulic | ||
| motor | 6.1 | driving motor power | KW | 3 | 5 |
| battery | 7.1 | voltage | V | 48 | 48 |
| 7.2 | cap[acity | Ah | 270 | 360 | |
| 7.3 | battery weight | kg | 400 | 530 | |
| others | 8.1 | travel control | microcomputer mosfet | microcomputer mosfet | |
| 8.2 | average noise | dB(A) | 68 | 68 | |
| 8.3 | traction bolt | traction bolt | traction bolt | ||
| Characteristics | 1.1 | model | QB30 | QB45-RA1 | |
| 1.3 | drive tyoe | battery | battery | ||
| 1.4 | operator type | stand | stand | ||
| 1.5 | rated traction weight | Q(kg) | 3000 | 4500 | |
| 1.6 | drawbarpull(60mins) | (kg) | 1800 | 110 | |
| 1.7 | drawbarcenter height | H10（mm） | 350 | 128 | |
| 1.8 | drawbarpull(5mins) | (kg) | 4200 | 300 | |
| 1.9 | wheel distance | Y(mm) | _ | 1054 | |
| capacity | 2.1 | weight(with battery) | kg | 650 | 1000 |
| 2.2 | axle loading front | kg | 427 | 560/440 | |
| 2.3 | axle loading rear | kg | 227 | 580/420 | |
| wheel chasis | 3.1 | wheel material | polyurethane | polyurethane | |
| 3.2 | tyre size ,front | φ254×82 | φ250×80 | ||
| 3.3 | tyre size ,rear | φ254×100 | φ200×50 | ||
| 3.4 | added wheels （size） | _ | φ127×57 | ||
| 3.5 | tyre number,front/rear,x=driving wheels | 1x / 2 | 1X+2/2 | ||
| 3.6 | wheel base(rear) | b11(mm) | 630 | 740 | |
| dimentions | 4.1 | height of tiller in draving position min/max | h14(mm) | 1095/1510 | 1070/1370 |
| 4.2 | whole length | l1(mm) | 1490 | 1450 | |
| 4.3 | whole width | b1(mm) | 750 | 830 | |
| 4.4 | ground clearance centre of wheelbase | m2(mm) | 62 | 55 | |
| 4.5 | aise width | Ast(mm) | 1200 | 1670 | |
| 4.6 | turning radius | Wa(mm) | 1350 | 1235 | |
| performance | 5.1 | travel speed ,laden/laden | Km/h | 7.5/9.5 | 9/14 |
| 5.2 | max.gradeability,laden/unladen | % | 4/10 | 4/12 | |
| 5.3 | brake | electromagnetic | electromagnetic | ||
| motor | 6.1 | voltage | kW | 2.5 | 4 |
| 6.4 | cap[acity | V/Ah | 24/280 | 24/560 | |
| 6.5 | battery weight | Kg | 320 | 559 | |
| 6.6 | battery size | mm | 658x250x575 | 780X335X625 | |
| others | 7.1 | soundlevel at the driver's sear according to DIN12053 | dB(A) | 70 | 70 |
