Universal grinding machine OPTIgrind GU 20S (230V)

The HOLZMANN BT75 is a compact and versatile mini belt and disc sander, ideal for precise sanding, edge finishing and small workpiece processing. Thanks to its compact size and robust design, it is perfectly suited for hobby workshops, model making, and light-duty finishing tasks.

The machine features a constant-speed sanding belt, a rotating disc sanding table, and a reliable induction motor, ensuring smooth, low‑vibration operation. The aluminium housing provides a lightweight yet stable structure, enabling accurate and safe handling.

Key Features:

• Compact mini design, ideal for limited workspace
• Combination belt and disc sander for versatile sanding tasks
• Constant belt speed for uniform sanding results
• Rotating sanding table for different sanding angles
• Durable aluminium housing
• Reliable induction motor for smooth and quiet operation
  
  

Technical Specifications:

• Power supply: 230 V / 50 Hz
• Motor power: 250 W
• Sanding belt size: 25 × 760 mm
• Sanding disc diameter: 125 mm
• Disc speed: approx. 2950 rpm
• Table size: approx. 190 × 125 mm
• Net weight: approx. 7.5 kg

The HOLZSTAR KSO 790 is a professional stationary belt sanding machine designed for precise sanding of wooden workpieces both lengthwise and crosswise. It is ideal for edge sanding, surface sanding, bevel sanding, and contour sanding in joinery workshops as well as for demanding DIY applications.

The swiveling sanding unit allows both horizontal and vertical operation, making the machine extremely versatile. Adjustable work tables (0–45°) and a height‑adjustable longitudinal table ensure optimal use of the full sanding belt width and enable accurate results even when working with larger workpieces.

Key features:

• Horizontally and vertically usable sanding unit for a wide range of applications
• Longitudinal and transverse tables, adjustable from 0° to 45°
• Height‑adjustable longitudinal table for maximum utilization of the sanding belt width
• Quick belt tensioning system for fast and easy belt changes
• Graphite‑coated sanding base for improved belt glide and extended belt service life
• Dust extraction connection for a cleaner working environment
  
  

Technical specifications:

• Power supply: 230 V / 50 Hz
• Motor power: 1.5 kW
• Sanding belt dimensions: 2010 × 152 mm
• Sanding surface: approx. 790 × 152 mm
• Sanding belt speed: 11 m/s
• Working height: approx. 810–890 mm
• Dust extraction port: Ø 100 mm
• Dimensions (L × W × H): approx. 1300 × 600 × 1050 mm
• Weight: approx. 78 kg
  
  

Scope of delivery:

• HOLZSTAR KSO 790 belt sanding machine
• Sanding belt (grit K80)
• Adjustable mitre fence

The HOLZSTAR OSS 100 is a compact and precise oscillating spindle sander, designed for sanding profiles, inside radii, curved edges and complex workpieces. The oscillating and rotating spindle ensures even sanding results and reduces abrasive wear. It is ideally suited for DIY users and small workshops.

Key features:

• Oscillating spindle sander for accurate contour and edge sanding
• Oscillating and rotating spindle for smooth, consistent results
• Large, solid cast iron work table for maximum precision
• Integrated dust extraction port for a clean working environment
• Powerful motor suitable for all common wood materials
• Compact and lightweight design for easy transport and storage

Technical specifications:

• Motor power: 0.45 kW (450 W)
• Power supply: 230 V / 50 Hz
• Spindle speed: approx. 2000 rpm
• Oscillation stroke: approx. 16 mm
• Work table size: 370 × 295 mm
• Maximum spindle diameter: 76 mm
• Maximum spindle height: 115 mm
• Dust extraction port diameter: Ø 63 mm
• Dimensions (L × W × H): approx. 390 × 330 × 450 mm
• Weight: approx. 14 kg

Included in delivery:

• HOLZSTAR OSS 100 oscillating spindle sander
• 6 sanding sleeves (Ø 13, 19, 26, 38, 51 and 76 mm, grit K80)
• 5 rubber sanding rollers (Ø 19, 26, 38, 51 and 76 mm)
• 6 table inserts (Ø 13–76 mm)
• Spindle washers and assembly tool
• User manual and CE declaration

The HOLZSTAR BTS 250 is a compact and versatile belt and disc sander, suitable for surface, edge and contour sanding of wood and various materials. The combination of belt sanding and disc sanding makes the machine ideal for workshop and hobby use.

Key features:

• Combined belt and disc sander for versatile sanding tasks
• Infinitely adjustable sanding belt unit 0–90° for horizontal and vertical operation
• Tilting work table 0–45° for accurate angle sanding
• Torsion‑free machine housing with steel/cast construction
• Quick‑release system for fast sanding belt changes without tools
• Integrated dust extraction port for connection to an external extraction unit

Technical specifications:

• Motor power: 0.8 kW
• Power supply: 230 V / 50 Hz
• Sanding belt size: 1220 × 150 mm
• Sanding disc diameter: 250 mm
• Table size: 360 × 200 mm
• Belt speed: 1440 rpm
• Dust extraction port diameter: Ø 120 mm
• Dimensions (L × W × H): 720 × 410 × 440 mm
• Weight: 47 kg

Included in delivery:

• HOLZSTAR BTS 250 belt and disc sander
• Sanding belt 1220 × 150 mm, grit K60 (pre‑installed)
• Sanding disc Ø 250 mm, grit K80 (pre‑installed)
• Adjustable work table
• Dust extraction adapter
• User manual

The HOLZSTAR BTS 151 V is a compact and versatile belt and disc sander, designed for precise sanding of wood and wood‑based materials. It is ideal for home workshops, training facilities and small professional workshops where flexibility and accuracy are required.

The machine features variable speed control, allowing optimal adjustment to different materials and applications. The belt sanding unit swivels from 0° to 90°, enabling vertical and horizontal operation. A height‑adjustable workpiece support (0°–45°) and a mitre fence guided in a T‑slot ensure accurate sanding of edges, mitres and flat surfaces.

A solid cast‑aluminium housing, tool‑free quick belt change system, and an integrated dust extraction port make this sander reliable and user‑friendly. 

Key Features:

• Combined belt and disc sander for precision sanding
• Powerful 0.37 kW motor
• Variable speed control
• Belt unit swivels 0°–90°
• Workpiece support adjustable from 0° to 45°
• Mitre fence guided in T‑slot
• Fast, tool‑free belt change
• Integrated dust extraction connection