Compare the Crain 968 Type 2, Leister GROOVER 108.395 and WOLFF Master Groover 50159 for preparing vinyl flooring seams for heat welding. All three cut welding grooves, with differences in blade speed, floor tracking, depth control and purchase cost.
Electric Floor Groover Comparison
| Feature | Crain 968 Type 2 | Leister GROOVER 108.395 | WOLFF Master Groover 50159 |
|---|---|---|---|
| Motor speed | 12,000 RPM, single speed | 14,500 / 18,500 RPM, two speeds | 6,000–10,000 RPM, variable speed |
| Electrical supply | 110V, 9A | 120V, 350/700W | 115V, rated 2 HP |
| Included grooving blade | 130mm × 3.3mm carbide blade with trapezoidal profile | 110mm × 3.5mm carbide blade with trapezoidal profile | 5-inch × 3.3mm carbide grooving disc with semicircular profile |
| Seam tracking | Front and rear guide wheels; rear wheel follows the cut groove | Adjustable guide roller and rear roller on a three-roller base | Adjustable tracking and lateral guidance for raised rubber flooring |
| Depth control | Floor-following wheel raises or lowers the blade with surface variations | Adjustable cutting depth from 0–4mm | Automatic depth control on uneven substrates; adjustment up to 3/16 inch |
| Dust collection | Dust bag and spring-loaded floor-following shroud | Integrated extraction fan and dust bag | Chip extraction and dust bag |
| Carrying case | Included | Included | Included |
| Approximate purchase price | $700–$900 | $2,500–$2,700 | $2,150–$2,300 |
Approximate price ranges for comparison, reviewed September 2026. Actual prices, availability, shipping and discounts vary by seller.
Blade Speed, Heat and Groove Quality
Blade RPM affects cutting speed and heat at the cut. Feed rate, blade sharpness, groove depth and flooring material also affect whether seam edges soften or melt. Match the blade and operating settings to the flooring manufacturer's requirements.
The Crain operates at a fixed 12,000 RPM. Leister provides two higher-speed settings, while WOLFF offers a variable 6,000–10,000 RPM range. These settings provide different levels of operating flexibility; RPM alone does not determine groove quality.
Floor Tracking and Depth Control
The Crain 968 follows the seam with guide wheels while a separate floor-following wheel adjusts blade height. Crain specifies compensation for up to 1/8 inch of floor variation over one foot of seamline. This compensation is separate from maximum cutting depth.
The Leister GROOVER uses an adjustable guide roller and a rear roller that follows the groove. WOLFF provides automatic depth control for uneven substrates and lateral guidance for raised rubber flooring.
Comparing Purchase Cost
Within the price ranges above, the Crain 968 costs less than half as much as either the Leister GROOVER or WOLFF Master Groover. It includes a carbide blade and carrying case, making it a lower-cost option for contractors preparing flooring seams for heat welding.
Choosing a Groover for Your Flooring Work
- Crain 968 Type 2: Consider its lower purchase cost, floor-following depth control and included carbide blade and case.
- Leister GROOVER: Consider its two cutting speeds, integrated extraction fan and selection of grooving blade profiles.
- WOLFF Master Groover: Consider its variable speed, automatic depth control and guidance for raised rubber flooring.
Check the required groove shape, width and depth for the flooring being installed. Blade profiles and mounting specifications differ between machines.