Scope of Application
QG‑3Ⅱ electric railway saw is professional electric‑powered equipment for on‑site steel rail cutting. It fits 43 kg/m to 75 kg‑m rails. The abrasive grinding wheel delivers neat cutting cross‑section that meets railway industry standards. Widely used in routine overhaul, track repair and emergency rush‑repair work. Featuring fast cutting speed, long grinding‑wheel service life, easy movement and safe operation for track‑side working.
Technical Parameter
1. Electric Motor:
1) Power: 3.0 kw
2) Speed: 2850r / min
(cast iron shell 2870r / min)
2. Disc grinding wheel (spindle)
1) Spindle speed : 3060r / min (3080r / min)
2) Specification: Φ 400 × 4 × Φ 32mm
3) Linear speed ≥ 70s / M (80s / M recommended)
3. Cutting time : 60kg / m rail ≤ 120s
4. Number of usage: 50kg /m rail, usage ≥ 4 times
60kg /m rail, usage ≥ 3 times
Whole machine weight: cast aluminum shell motor ≤ 54kg
(cast iron shell motor ≤ 64kg)
Product Advantages
●Fast & Clean Cutting Performance
For 60kg/m rail, cutting can be finished within 120 seconds. The abrasive wheel produces smooth burr‑free cutting surface which meets railway standard requirements, less secondary finishing work required.
●Long Service Life of Grinding Wheel
The high‑strength cutting wheel supports ≥3 cuts for 60kg/m rail and ≥4 cuts for 50kg/m rail, lowering consumable‑parts cost for track maintenance teams.
●Two‑type Motor Options
Users can choose cast‑aluminum shell motor (54 kg, light‑weight) or cast‑iron shell motor (64 kg, higher shock resistance), adapting different site transport and working conditions.
●Safe & Convenient Field Operation
Compact whole‑machine layout, convenient to move and clamp onto rails. Clear operation steps, suitable for outdoor track‑side maintenance work.
Product Application
●Routine railway track overhaul and maintenance
●Rail replacement and rail joint reconstruction work
●Emergency rush‑repair after rail damage or track accident
●Suitable for main‑line railway, metro and turnout sections
Maintenance
1. Lubrication shall be maintained between the swing arm and the long shaft, and lubricating oil shall be regularly injected into the oil filling nozzle.
2. After running for 500 hours, the main shaft bearing should be removed and cleaned, and the grease should be replaced.
3. The swing arm and cutting arm are connected by threaded pin shaft, which has been adjusted before leaving the factory. When it is loose after wear, the lock nut can be loosened, the threaded pin shaft can be rotated, and the axial clearance of various parts can be adjusted to make them rotate with each other without axial movement, and then the nut can be locked.
4. The tension of V-belt drive is adjusted by the rotation of two hexagon bolts.
5. It is not allowed to throw or fall during use and transportation.
6. If it is not used for a long time, it should be placed in a ventilated, dry warehouse without corrosive gas. In case of damp or rain, the insulation resistance should be measured with a 500V megohmmeter before use, and the insulation resistance of the electrical device to the base should not be less than 7MΩ.
7. Check whether the power cord, plug and switch are in good condition before use, otherwise they cannot be used. Before inserting into the power socket, the motor switch should be in the "off" position. The plug and socket must be matched and correctly grounded.
8. Do not make the power cord contact with heat source and grease. Prevent the power cord from being scratched, cut and rolled.
9. Sheet grinding wheel should be moisture-proof, anti-collision, anti pressure.
10. Do not let the machine be drenched. If it is drenched, wipe the gasoline engine and all parts of the machine dry. The grinding wheel can be used after drying.
FAQ
Q1: What rail types can QG‑3Ⅱ electric railway saw cut?
A1: It is designed for 43 kg/m, 50 kg/m, 60 kg/m and 75 kg/m standard steel rails for railway lines.
Q2: How long does it take to cut one 60kg/m rail?
A2: Under normal working conditions, cutting time for 60 kg/m rail is within 120 seconds.
Q3: What are the two motor versions for this machine?
A3: Cast‑aluminum shell motor (total weight ≤54kg, lightweight) and cast‑iron shell motor (total weight ≤64kg, better anti‑shock performance).
Q4: What size of grinding wheel does this rail cutting saw adopt?
A4: It uses Φ400 ×4 ×Φ32 mm abrasive grinding wheel, recommended linear speed 80 m/s.
Q5: Can you supply spare grinding wheels and related accessories?
A5: Yes. Matching cutting grinding wheels, V‑belts and other wearing spare parts are available. Operation manual is provided together with goods.
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