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Bosch Rotation Lasers: GRL 350 HV Rotary Laser Level | Bosch Professional pneumatic product available at Shri Narayan Machinery LLP Noida
Bosch Professional

Bosch Rotation Lasers: GRL 350 HV Rotary Laser Level

The Bosch GRL 350 HV is a dual-axis rotation laser built for large-scale construction, grading, and site levelling where long-range accuracy is critical. With a 350-metre working radius using the included LR 1 laser receiver, it covers entire building floors, parking lots, and open land parcels from a single setup. The unit projects both horizontal and vertical rotating laser planes, so it handles floor levelling, grade work, and plumb alignment of structural columns and facades. The servo-driven self-levelling mechanism delivers rapid calibration on uneven terrain. An integrated manual slope function sets gradients for drainage and road work. The IP56 rating handles monsoon-season construction conditions in India. Shri Narayan Machinery LLP supplies the GRL 350 HV with genuine Bosch receivers and tripods in Noida.

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Model: GRL 350 HV ProfessionalWorking Radius: Up to 350m (with LR 1 receiver)Horizontal Accuracy: +/- 0.1mm/mVertical Accuracy: +/- 0.1mm/m

Key Features

350-metre working radius with LR 1 laser receiver for large-site coverage
Dual-axis rotation: horizontal and vertical planes from a single unit
Self-levelling servo motor with +/- 8% grade manual slope function for drainage work
Accuracy of +/- 0.1mm/m (horizontal) for precise floor and grade levelling
Variable rotation speed (150/300/600 RPM) for different visibility and range needs
IP56 rated, fully dust-proof and protected against strong water jets
Electronic self-levelling with out-of-level auto-shutoff for reliable results
Compatible with Bosch LR 1 and LR 45 laser receivers, BT 150 tripod, and GR 500 grade rod

Technical Specifications

ModelGRL 350 HV Professional
Working RadiusUp to 350m (with LR 1 receiver)
Horizontal Accuracy+/- 0.1mm/m
Vertical Accuracy+/- 0.1mm/m
Self-Levelling Range+/- 5 degrees
Manual Slope Range+/- 8%
Rotation Speed150 / 300 / 600 RPM (selectable)
Laser ClassClass 3R (< 5mW, 635nm red)
IP RatingIP56
Power SourceRechargeable NiMH battery pack
Operating Temperature-20°C to +50°C
Weight1.8 kg (without battery)

Applications

The Rotation Lasers is used across a wide range of industrial applications:

  • Floor levelling and screeding across large commercial buildings and warehouses
  • Site grading and earthwork levelling for foundations and parking lots
  • Road and pavement slope setting for proper drainage gradient
  • Structural column and facade plumb alignment on multi-storey construction
  • Suspended ceiling installation across expansive commercial and retail spaces
  • Agricultural land levelling for irrigation slope management
  • Pipeline trench grade control for drainage and sewer projects
  • Formwork alignment and level checking for RCC slab construction

Industries Served

Civil Construction & InfrastructureReal Estate DevelopmentRoad & Highway ConstructionAgriculture & Land DevelopmentIndustrial Plant ConstructionMunicipal & Government Works

Need Rotation Lasers? Get the Best Dealer Price

As your Bosch Professional dealer, Shri Narayan Machinery LLP offers competitive pricing on the full Rotation Lasers range. Call us for availability and your best quote.

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C-101, Sector 9, Noida, Uttar Pradesh 201301 | Bosch Professional Dealer

Frequently Asked Questions: Rotation Lasers

The Bosch GRL 350 HV has a working radius of 350 metres with the Bosch LR 1 laser receiver. That's a 700-metre diameter from a single setup, enough for most commercial building sites, parking lots, and road construction projects.

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