Track Saw
Overview
Track saws are core equipment for railway track construction and maintenance. Classified by power type, they fall into two categories: electric rail saws (relying on external power supply, suitable for fixed scenarios) and internal combustion rail saws (no power supply required, adaptable to field/emergency operations).
Model cards — technical highlights
DQG-3 — Electric Rail Cutter
Power: 5 kW, 380V
Weight: 25 kg
Body: Stainless steel（anti-corrosion）
Wheel: Ø400 × Ø32 × 4 mm
Rail range: 43–75 kg/m
Cut thickness: 20 mm
Precision: Verticality ≤ 0.5 mm
Aux air: pipe Ø25 mm, 25 L/min, inlet Ø35 mm
Best for: Workshop, port, mine — fixed 380V work, corrosion-prone environments.
DQG-4 — Handheld Dual-Swing Electric
Power: 4 kW, 380V
Weight: 42 kg
Wheel: Ø400 × Ø32 × 4 mm
Rail range: 43–75 kg/m
Cut time: ≤ 2 min for 60 kg/m rail
Precision: Vertical/parallel < 0.5 mm; surface roughness Ra ≥ 6.3
Wheel yield: 43 kg/m: 5–4 cuts; 50 kg/m: 4–3; 60 kg/m: 3–2; 75 kg/m: 2–1
Best for: Maintenance, turnout areas, weld-prep where angle flexibility is needed.
K1260 — High-Precision Petrol Cutter
Power: 5.8 kW (119 cc)
Drive / rpm: working 9000 rpm; idle 5100 rpm
Weight: 29 kg (incl. clamp)
Rail range: 43–75 kg/m
Cut accuracy: Flatness ≤ 0.3 mm (weld-grade)
Use: Heavy rails (≥75 kg/m), weld pre-prep, emergency/field with precision needs
Notes: Supports custom clamp fixtures.
K1270 — Portable Petrol Cutter
Power: 5.8 kW (2-stroke)
Operating rpm: 5100 r/min (drive)
Weight: net 29 kg; 32 kg with basic accessories
Wheel: Ø350 × 4 mm
Rail range: 43–75 kg/m
Precision: Verticality ≤ 0.4 mm
Best for: Field repairs, emergency cuts — highly portable.
NQG-6.5 — Stable Petrol Cutter
Power: ≈4.8 kW (6.5 hp)
Speed: 3600 r/min
Weight: 53 kg; 500 × 500 × 600 mm
Wheel: Ø400 × Ø32 × 4 mm
Rail range: 43–75 kg/m
Cut time: 1–1.5 min (60 kg/m)
Precision: Vertical/flatness ≤ 0.5 mm
Wheel yield: 43 kg/m: 5–6; 50 kg/m: 3–5; 60 kg/m: 2–3
Best for: Depot/port overhauls, batch cutting with low consumable cost.
Selection guide
By environment
Fixed workshop with 380V: DQG-3 (corrosion resistant) or DQG-4 (weld prep).
Field / no power / emergency: K1270 (ultra-portable) or K1260 (high-precision heavy rail).
Depot / bulk cutting: NQG-6.5 for stability and consumable efficiency.
By rail & precision
≥75 kg/m and weld-grade finish → K1260 (flatness ≤0.3 mm).
43–60 kg/m, high throughput → NQG-6.5 or DQG-4 (cost & wheel yield).
By intensity
High-frequency continuous cutting → NQG-6.5 or K1260.
Intermittent / occasional / multi-site → DQG-3 or K1270.
Consumables, fuel & commissioning notes
Wheel sizes: K1270 — Ø350×4 mm; DQG-3/DQG-4/NQG-6.5 — Ø400×Ø32×4 mm (verify per model datasheet).
Wheel life reference: see DQG-4 / NQG-6.5 yield numbers in model cards. Wheel life varies by rail grade, operator technique, cooling.
Fuel: petrol models use 92+ unleaded gasoline. Pre-use engine checks and break-in per manual.
Electric supply: ensure stable 380V for electric models to avoid motor damage.
Safety: PPE, correct clamping, cooling and wheel guards mandatory. Provide operator training and manuals in EN.
MTC & test reports: provided with each shipment on request.
Third-party inspection: NDT / ultrasonic testing available for large orders.
Engineering support: track/rail engineers confirm clamp / joint compatibility and weld-prep guidance.
Documentation: CAD (DWG/STEP), operation manuals (EN), spare parts lists supplied.
Procurement flow
Submit RFQ — include model, quantity, wheel spec (Ø350 / Ø400), clamps, destination.
Technical review — engineering confirms clamp compatibility, wheel spec, custom fixtures.
Itemised quote & CAD — receive price, lead time, sample availability, MTC options.
Order & inspection — place PO; pre-shipment QA and MTC attached; third-party inspection available.
Shipping & support — timber cribbing bundles, FCL/LCL, heavy-lift coordination and post-sale tech support.
FAQs
Q:Electric or petrol — which to choose?
A: If you have stable 380V and fixed working area, choose electric (DQG-3/DQG-4). For field mobility and emergency repairs, choose petrol (K1270/K1260/NQG-6.5).
Q: Which model meets welding flatness requirements?
A: K1260 achieves flatness ≤0.3 mm, recommended for weld-grade preparation, especially for rails ≥75 kg/m.
Q: What is the expected wheel life?
A: Wheel life depends on rail mass, cut depth and operator technique. Reference yields: DQG-4 and NQG-6.5 lists (see model cards). We can offer consumable packages priced per project.