The Tehma SP400 with small wedge is a handheld hydraulic splitter configured for high-pressure rock splitting, and it converts easily to standard wedges for concrete work. Operating at up to 600 bar (8,700 psi), the 51 lb (23 kg) tool develops 1,367,000 lb (6,080 kN) of theoretical splitting force from a 1.381.42 in. drilled hole cracking boulders and ledge quietly, with no vibration or flying debris.

The small wedge trades splitting distance 0.4 in. (10 mm) per cycle for the higher pressure dense rock demands: drill the 17.3 in. minimum-depth hole, insert the wedge set and drive it from a unit on our Tehma power packs page. Need more force, step up to the Tehma SP600; the rock splitter buyer’s guide maps which model fits which job, and all Tehma splitters are stocked by Crowder Supply.

• Maximum operating pressure: 600 bar (8,700 psi) for high-pressure rock splitting
• Theoretical splitting force 1,367,000 lb (6,080 kN); splitting distance 0.4 in. (10 mm)
• Works from a 1.381.42 in. (3536 mm) drilled hole with 17.3 in. (440 mm) minimum depth
• Tool weight 51 lb (23 kg); overall dimensions 40.6 x 7.5 x 7.7 in.
• Converts easily to standard wedges for concrete splitting and bursting
• Splits without vibration, flying debris or blasting suited to confined and occupied spaces
• Stocked by Crowder Supply in Denver with Tehma power packs, hoses, wedges and grease

Tehma SP400 FAQ

What hole do I need to drill?
A 1.381.42 in. (3536 mm) diameter hole at least 17.3 in. (440 mm) deep drill it, insert the wedge set and drive the wedge hydraulically.

What is the small wedge for?
The small wedge configuration runs the full 600 bar (8,700 psi) for high-pressure splitting of dense rock, trading splitting distance 0.4 in. per cycle for force; the tool converts easily to standard wedges for concrete splitting and bursting.

What powers the SP400?
A Tehma hydraulic power pack through high-pressure hoses the PP600 is the suggested unit delivering up to 600 bar at the tool.

Can I use it in occupied or confined spaces?
Yes it splits without vibration, flying debris or blasting, which is exactly where a splitter beats a breaker.