Product

Prod. No.

Capacity/unit

Lift

Elec. Upgrade

Acme Screw Jack

4150

1500 lbs dynamic load

34.5 "

Yes

Ball Screw Jack

4500

1900 lbs dynamic load

34.5 "

Yes

Quick Release Ball Screw Jack

4600

1900 lbs dynamic load

34.5 "

Yes

• 
  - Efficient, polished, steel screw resists rust
• - User-friendly crank
• - Self-lubricating nut
• - The only jack with a redundant safety check system
• - Universal Z-bracket mounting system
• - Strong 2-inch square tubing with ¼-inch reinforced strap
  
• - Durable powder coat paint
• - A full inch of travel with only six turns
• - Quality, precision construction
• - Concave footpad design for greater stability and minimum stress
• - 1500-pound load lift capacity per jack
• - No grease line as gear mechanism is internal
• - Friction reducing alignment guides on both inner and outer tubes
• - 34.5 inches of lift
• - Electrical upgrade option

• - Efficient, polished black oxidized alloy steel screw
• - User-friendly crank
• - 144 hardened chrome molly steel ball bearings
• - Dual ball bearing circuits provide a redundant safety check system
• - Universal Z-bracket mounting system
• - Strong 2-inch square tubing
• - Durable powder coat paint
  
• - A full inch of travel with only five turns
• - Quality, precision construction
• - Concave footpad design for greater stability and minimum
• - Slim, appearance enhancing, "Happijac look"
• - 1900-pound load lift capacity per jack
• - No grease line as gear mechanism is internal
• - Friction reducing alignment guides on both inner and outer tubes
• - 34.5 inches of lift
• - Electrical upgrade option
• - Quick release leg (4600 only) drops leg into ready-to-lift position in seconds