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Explanation
of basic internal workings design and features
Identify
which jack is right for various camper weights
Illustrated
installation instruction downloads for all happijac camper jacks
A
video guide on how to preserve your Jack's longevity and performance
The
dos and don't of safely loading and off-loading any camper
The
Happijac knowledge base, FAQ or post a question online.
Need
it now? your Jacks with expedited shipping options are a click away.
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Happijac Camper Jack Model Comparison
For over 35
years, Happijac has been producing some of the strongest, highest
quality camper jacks in the RV industry. Happijac has conducted
more camper jack research, testing, and development than any other
company. With a firm commitment to excellence, Happijac Company
has reinvented the camper jack and is revolutionizing the industry
with the first comprehensive and fully upgradeable line of camper
jacks. With two distinct models of jacks spanning the weight requirements
of virtually every camper on the market, finding the one that's
right for you is simple and easy. In order to help you determine
the right jack for your application, the key features and elements
in each model are described below.
|
Product
specs and features
| Product |
Prod.
No. |
Capacity
per unit |
Lift
|
Elec.
Upgrade |
Acme
Screw Jack |
4150 |
1700
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
- More
user friendly crank
- Self-lubricating
nut
- The
only jack
featuring a"Fail-safe" safety nut in the industry
- Universal
Z-bracket mounting system
- Strong
2" square tubing
- Durable,
powder coat paint
- Painted
inner and outer tubing
- A full
inch of travel with only six turns
- Quality,
precision construction
- Concave
footpad design for greater stability and minimum stress
- Slim,
appearance enhancing, "Happijac look"
- 1500
lb. load lift capacity per jack
- No
"grease line" as gear mechanism is internal
- Friction
reducing alignment guides on both inner and outer tubes
- 34"
of lift
- Electrical
upgrade option
|
4500 and 4600 Ball Screw Jacks
 |
- Efficient,
polished, black oxidized, alloy steel screw.
- More
user friendly crank
- 144
hardened, chrome molly steel ball bearings
- Dual
ball bearing circuits provide "fail safe" operation
- Universal
Z-bracket mounting system
- Strong
2" square tubing
- Durable,
powder coat paint in a choice of colors
- Painted
inner and outer tubes
- A full
inch of travel with only five turns
- Quality,
precision construction
- Concave
footpad design for greater stability and minimum stress
- Slim,
appearance enhancing, "Happijac look"
- 1900
lb. load lift capacity per jack
- No
"grease line" as gear mechanism is internal
- Friction
reducing alignment guides on both inner and outer tubes
- 34"
of lift
- Electrical
upgrade option
- Quick
release leg (4600 only) drops leg into "ready-to-lift"
position in seconds.
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