Four Post Lift
4T/5T Capacity Four Post Lifts
Models: L-4-40B / L-4-50B
Dare to Compare / Separating Fact from Fiction
Too often in the DIY auto lift market, manufacturers rely on the dissemination of inaccurate
information and creative advertising ploys in order to sell inferior products. J&F recommends
that anyone in the market for an auto lift thoroughly conduct comparative research of all the
options before ultimately deciding which lift to purchase. In an effort to assist the customer in
navigating the various factual gray-areas and minefields of misinformation, J&F compiled this
study for your consideration.
Full Range of Lift Models to Chose From
J&F has 20 lift models ranging from lightweight to super‐duty.
Parts And Accessories
Many valuable componets are available for your J&F four‐post lift.
J&F has a staff of seven full‐time engineers who do nothing but design, test and evaluate
lift systems. J&F lifts have changed and evolved over the past 40‐years, not because they
want to sell you on a new model every few years, but because they are constantly improving
the structural integrity and design of our lifts to meet ever‐changing world standards. On
the surface, many lifts look "engineered", but what lies under the surface? All J&F lift designs
are computer modeled for function and structural integrity, undergo simulation of applied
forces, axial force, bending moment, etc. using Solid Works Cosmos and other FEA programs.
After the design is sound, they proceed with actual destructive (physical) testing.
There is only one real national lift standard for quality and safety-OSHA endorsed ANSI/ALI
ALCTV‐2006. If you don't see any reference to this standard, then ask yourself if saving a
few extra bucks on a non‐certified lift is really worth jeopardizing the safety of you, your
loved ones and your valuable equipment. J&F gives you value, but more important, peace
of mind.
"Plastic"? No!
J&F lifts incorporate UHMW ( Ultra‐High Molecular weight ) Polyethylene glide blocks to
maintain proper alignment of lifting and safety components. UHMW is often referred to as
the world's toughest polymer. A linear high density polyethylene, UHMW has high abrasion
resistance as well as high impact strength. UHMW is also chemical resistant and has a low
‐coefficient‐of‐friction which makes it highly effective in a variety of applications. J&F
glide blocks are simply guides that keep the cross tubes and safety ladder centered within
the column and minimize sway.
Designed for Longevity
J&F lifts feature cable sheaves that are precisely centered within the cross tube to ensure
that the cross tube stays level, there by eliminating side loads of any kind. Lesser‐known
lift brands employ cross tube sheaves and axles that are located outside the cross tube
body, forcing the cross tubes to twist or rotate away from the sheave as the lift raises. This
twisting occurrence tends to develop side‐loading on their cross tube components and
plastic sliders.
Hydraulic Cylinder Design
All of J&F lift cylinders use internal flow‐restrictors to prevent rapid fall in case of a hose
or fitting failure. This is a worldwide safety standard that is required for all commercial lift
manufacturers. International lift standards prohibit the use of quick‐disconnect fittings on
vehicle or personnel lift applications. Quick disconnect fittings have spring loaded ball‐in
‐seat components. If the ball does not "seat" like you expect it due to contamination or a
faulty ballseat, there is nothing to shut off the flow of oil and the uncontrolled descent of
your lift. Hose "blow‐outs" simply do not occur under normal use. As part of the ANSI/ALI
ALCTV‐2006 standard, all J&F hoses have a 400% safety factor based on the pressure
required to operate the lift at its rated load capacity.
Redundant Safety Lock System
J&F four‐post lifts employ eight independent safety lock devices ‐ four primary and four back‐ups.
Adjustable Safety Locks
J&F's adjustable ladder provides adaptability for unlevel floors, enabling your vehicle to
sit safely in a level position even if your floor is unlevel‐an important feature that many
other lift brands lacks. J&F also features 13 adjustable lock positions to provide greater
versatility and storage height coverage.
Anti‐Twist Cable Block
J&F's cable block attached to the chrome rod features "outrigger" sleds that ride on the
inside rails of the runways to ensure the cable block remains square at all times. Lifts that
do not incorporate this device can experience cable block misalignment ( the cylinder
rod tends to rotate as the cylinder moves due to the inherent nature of the cables trying
to " unwind " and/or the rifling surface inside the cylinder bore) which ultimately causes
premature wear of cables and/or sheaves.
150mm Diameter Cable Pulleys
Our 150mm diameter cable pulleys are a tad bit on the large size, but these super size
sheaves will add years of service life to the lifting cables. The largest contributing factor
for premature cable wear is bending fatigue as the cable wraps around the sheaves
under load.
Powder Coat Paint Finish
All J&F lifts feature a durable powder coat finish that gives the metal a high‐quality,
extremely durable finish which can withstand even the harshest environmental or
chemical conditions. Unlike other companies that claim to powder coat, we take pride
in our meticulous process. First, all parts are visually inspected before being
sandblasted and then washed in our five-stage phosphate tanks.They're immediately
dried to avoid rust production, then any surfaces and/or threaded holes that need to
be masked or plugged are done so with high -temperature masking tape and silicone
plugs. Next, the parts are given a quick thinner wipe to remove any light debris or
fingerprints, before being hung on an electrostatically grounded conveyor line. The
powder is then applied using an electrostatic spray gun. The powder "sticks" to the
parts similar to how dust sticks to at elevision screen. Once the parts are powder
coated, the carts are rolled into our curing oven and baked at 400ºF for 15 for 45
minutes.
