Happijac Camper Jack Model Comparison
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
|
capacity rated according to ANSI standard for dynamic (moving) load
4150 Acme Screw Jacks
 |
- 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
|
4500 and 4600 Ball Screw Jacks
 |
- - 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
|