The Danuser SM40 is a hydraulic drop-hammer post driver for fencing and other post-installation work. The hammer rises hydraulically and falls under its own weight, with full- and short-stroke operation for different driving conditions.This base package includes the skid-steer quick-attach mount and hoses. A heavier hammer kit, hydraulic tilt and a post-handling grapple are available separately. The grapple allows compatible posts to be picked up and positioned from the loader seat; T-posts and smaller posts need the appropriate adapter or strike plate.Specifications Specification Details Hammer Stroke 40″ full drop Hammer Weight 300 lb standard, 500 lb max with kit Strokes per Minute Up to 35; depends on hydraulic supply and stroke Impact Energy 1,025 ft-lbs (300 lb), 1,709 ft-lbs (500 lb) Tilt Range (optional) ±20° Hydraulic Flow 12-30 GPM @ 1,500-3,000 PSI Max Post Width 8.5″ × 9.25″ Machine Weight 915 lb base; 1,115 lb with optional hammer weight kit Overall Dimensions 45.5″ L × 25″ W × 64″ H Mount Style Skid-steer quick attach; carrier compatibility must be checked We can check the post size, strike plate and optional handling equipment against your loader's hydraulics and lift capacity. Locate buried services before driving posts, and follow the manufacturer's operating clearances and safety instructions.Related Equipmentpost drivers · Danuser attachments