Güde GBTS 350.1 Concrete Cut-Off Saw – 2.9 kW Engine, Ø350 mm Diamond Blade
The Güde GBTS 350.1 cut-off saw is a compact solution for construction sites that require cutting concrete, curbs, tiles, and natural stone on-site without the need for stationary machinery. Unlike stationary stone cutters (weight >80 kg, difficult to transport), this 11 kg portable unit allows for manual transport to urban construction sites, land reclamation, and the creation of trenches for cable ducts. The 2.9 kW 2-stroke engine develops sufficient torque at 4,800 rpm for the diamond blade to cut at a high peripheral speed without any abnormal vibrations.
The wet/dry system is an operational innovation: it cuts with water (supplied from a tap or portable tank via a standard garden hose connection) to reduce silica dust by over 90% and cool the blade, or operates dry when water is unavailable (practical on sites without utilities). The 122 mm cutting depth is sufficient for double curbs, 100 mm tiles, and standard paving stones. The reversible starting system facilitates smooth starting without repeated pulls — a bidirectional start reduces operator effort compared to traditional engines.
Who is the Güde GBTS 350.1 cut-off saw suitable for?
| Profile |
Suitable? |
Reason |
| Construction builder / mobile site |
Ideal |
11 kg weight, shoulder-portable. 4,800 rpm cutting speed for curbs and tiles. Wet/dry cut reduces dust in urban areas. Reversible start facilitates starting. 122 mm depth covers standard thicknesses. |
| Paving specialist / installer |
Ideal |
Maneuverability for edge touch-ups and on-site geometric adjustments. Dust control with water allows work on residential sites. Diamond blade included, spare parts available. |
| Reclamation / demolition company |
Adequate |
Portability for cable duct tracing and block resizing. 2-stroke cycle ensures engine recovery under discontinuous loads. 116 dB(A) noise requires hearing PPE. Moderate petrol consumption (0.75 L tank for ~45 min of continuous cutting). |
Not suitable for: Cutting reinforced concrete at high continuous speeds (blade overheats without a break >20 min). Confined spaces without ventilation (2-stroke engine fumes risk, even with wet cutting). Operators without petrol engine training and mandatory PPE. Depths >122 mm or massive blocks (insufficient blade, overloaded engine).
Technical specifications
Engine
| Component |
Specification |
| Engine type |
2-stroke petrol, single cylinder |
| Engine power (P1) |
2.9 kW (3.9 HP) |
| Displacement |
65 cc |
| Engine speed |
8,500 rpm |
| No-load speed |
2,800–3,200 rpm |
| Fuel tank |
0.75 L (liters) |
| Carburetor |
Walbro (stable carburetion) |
| Fuel mixture |
1:40 (1 part oil, 40 parts petrol) |
| Starting system |
Reversierstart (reversible, bidirectional) |
| Cooling |
Air |
Blade and cutting system
| Component |
Specification |
| Blade diameter |
350 mm |
| Blade bore |
25.4 mm |
| Blade type |
Segmented diamond |
| Peripheral speed |
4,800 rpm |
| Blade included |
Yes, mounted and ready to use |
| Cutting mode |
Wet cut (with water) / Dry cut (dry) |
| Water connection |
Quick coupling for standard garden hose (universal connector) |
| Cuttable materials |
Concrete, cement, curbs, tiles, natural stone |
| Maximum cutting depth |
122 mm |
| Cutting length |
Not declared by manufacturer — maximum workpiece length depends on operational clearances |
Dimensions and weight
| Component |
Specification |
| Machine length |
750 mm |
| Machine depth |
310 mm |
| Machine height |
440 mm |
| Net weight |
11 kg |
| Gross weight (packaging) |
14.5 kg |
| Portability |
Manual — low weight, ideal for mobile sites |
Acoustic performance and vibration
| Component |
Specification |
| Noise level |
116 dB(A) at full load — Mandatory hearing PPE
|
| Vibration value |
9.8 m/s² — Anti-vibration PPE recommended
|
Compliance and environment
| Component |
Specification |
| CE marking |
Yes, Machinery Directive 2006/42/EC |
| CO₂ emissions |
908.4 g/kWh |
| Warranty |
24 months from purchase date (Güde standard) |
| Country of manufacture |
Germany |
| Certification |
CE |
| GTIN |
4015671340276 |
Packaging
| Component |
Specification |
| Package length |
685 mm |
| Package width |
260 mm |
| Package height |
430 mm |
| Package weight |
14.5 kg |
Standard equipment
- Güde GBTS 350.1 concrete cut-off saw assembled and ready to use
- Mounted Ø350 mm segmented diamond blade
- Spare air filter (3 pieces)
- User manual in Italian and German
- CE Declaration of Conformity
-
Not included: garden hose, water container, PPE (helmet, safety glasses, earmuffs, gloves, FFP2 mask)
Frequently Asked Questions
Can I cut reinforced concrete (rebar) with this cut-off saw?
No. The diamond blade is designed for unreinforced concrete. Rebar will irreparably damage the blade and create a risk of dangerous kickbacks for the operator. For reinforced concrete, use a specialized metallurgical abrasive blade (which is not compatible with this machine) or entrust cutting to specialized companies with dedicated machinery.
What is the petrol consumption in 1 hour of continuous cutting?
Estimated 0.5–0.75 L/hour at operating speed (4,800 rpm with blade load). The 0.75 L tank allows for ~45–60 minutes of continuous cutting before refilling. Consumption varies based on: concrete density (reinforced/light), dry/wet, cutting length and depth.
Is the wet cut mode (with water) really effective in reducing dust?
Yes, it reduces dispersed silica dust by over 90% (protects operator's lungs). Water also removes hot debris from the blade, extending tool life. The standard garden hose connection system facilitates continuous supply from a tap or portable tank. However, wet cut increases petrol consumption (~5-10% more demanding).
How does the reversible starting system (Reversierstart) work?
Allows starting in both engine rotation directions without disassembling the body. If the engine does not start, rotate the starter in the opposite direction instead of repeating pulls in the same direction. Reduces operator fatigue and damage from forced starts.
What is the correct petrol mixture?
1:40 (one part oil to 40 parts petrol). Incorrect mixture causes: too rich mixture → spark plug fouling and piston damage; too lean mixture → engine overheating and seizing. The Walbro carburetor maintains stable carburetion even with variations in Italian petrol, but the correct mixture is critical.
Do I need to wear special protection?
Yes, mandatory:
-
Construction helmet (protection from projectile fragments)
-
Safety glasses (impact-resistant sports type)
-
Earmuffs (116 dB(A) noise exceeds hearing damage threshold)
-
Latex or leather gloves (protection against blade and temperature)
-
FFP2 or FFP3 mask (captures silica dust, even with wet cut)
-
Safety shoes (foot protection from falling blade)
Can I use this cut-off saw to cut natural stone instead of concrete?
Yes. The diamond blade effectively cuts natural stone (granite, marble, slate) with the same parameters as concrete. The 122 mm depth covers normal thicknesses. Wet/dry mode is ideal for precious stones (water reduces overheating and chipping). However, very hard stones can strain the engine — limit continuous cutting to 15–20 min with a break.
What is the difference between wet and dry cutting?
Wet cut: Water → reduces dust, protects blade from overheating, improves cutting finish, but consumes more petrol and requires a water source. Dry cut: No water → greater autonomy, practical without site services, but dispersed dust requires more effective respiratory PPE.
How long does the diamond blade last before replacement?
Depends on: material density (light/heavy concrete), wet/dry mode, blade load. Estimated 20–50 hours of continuous cutting. Replace when the blade loses cutting efficiency or you notice chipping of the diamond segments.
