The OMER BiPark and Its Torsion Bar System: A Technical Look at One of the Most Reliable Car Stackers Available

Nelca Experts
May 25
4 min read

When evaluating a parking lift for a commercial facility — whether a car dealership, a rental fleet operation, a luxury storage facility, or a Cars & Coffee venue — reliability and safety under repeated daily use are what matter most. The lift needs to perform consistently, handle a wide variety of vehicles, and be easy to operate without requiring technical expertise from staff or clients.

The OMER BiPark is one of the car stackers NELCA Systems carries, and its torsion bar mechanism is one of its defining technical characteristics. Here’s what it does, how it works, and what it means in practice.

What Is the OMER BiPark?

The BiPark is a compact double car stacker — a no-pit system that raises one vehicle above another within the same parking footprint. Designed and manufactured in Italy by O.ME.R S.p.A., it has a lifting capacity of 6,600 lbs and comes in a standard configuration that is compatible with the vast majority of passenger vehicles, including SUVs, 4x4s, and low-clearance sports cars.

The lifting itself is done by hydraulic double-extension cylinders — manufactured by OMER — which allow direct lifting without any cables or chains. For facilities that need to stack three vehicles in one footprint, OMER also produces the TriPark, which applies the same core technology across two platforms.

The Torsion Bar System: How It Works

What the Torsion Bar Is

The torsion bar is a locking and alignment mechanism, not the lifting system itself — that job is handled by the hydraulic cylinders. The torsion bar’s role is to keep the platform parallel and secure throughout its travel, and to allow it to be safely stopped and locked at any height.

Integral to the torsion bar is a toothed pinion — a gear element that is part of the torsion bar itself. This pinion engages a rack on the lift column as the platform moves up and down. The combination of the torsion bar, pinion, and rack works to align the platform and resist any uneven forces applied to it.

Platform Alignment and Load Flexibility

One of the key practical benefits of the torsion bar-pinion assembly is that it aligns the platform so the weight on it does not need to be evenly distributed. This means the vehicle can be parked facing forward or backward, or offset to either side, and the lift will still operate safely and smoothly.

For a dealership moving vehicles on and off a stacker multiple times a day, or a rental operation where staff may vary, this is a meaningful operational advantage. There’s no need to reposition a vehicle for perfect balance before operating the lift.

The Electro-Magnetic Safety Lock

Working alongside the torsion bar is an electro-magnetically operated locking mechanism — what OMER calls a “dog.” Together, the toothed pinion integral to the torsion bar and this electro-magnetic lock ensure that the platform can be safely stopped and held at any height during its travel — not just at the fully raised or fully lowered position.

In the event of a power interruption or an emergency stop, the lock engages automatically to secure the platform in place. For a luxury storage facility or a Cars & Coffee venue where vehicles may remain elevated for extended periods, this passive safety feature gives operators and clients genuine peace of mind.

Reinforced Nylon Guides and Wheel Carriage

The platform carriage is guided along the columns by a combination of wheels and molybdenum disulphide-reinforced nylon guides. This reduces friction between the carriage and the column, delivering two operational benefits:

• Lower power consumption over the lifetime of the lift, reducing running costs for high-usage commercial facilities.

• Reduced mechanical wear, contributing to a longer service life and lower maintenance frequency — important for any operator who can’t afford downtime.

The column profile is also engineered to minimize the lift’s overall footprint while maximizing structural rigidity — a practical advantage for tight commercial layouts.

Fluid Management: A Detail That Matters in Commercial Settings

The BiPark’s galvanized platform is channeled specifically to prevent fluids — oil, water, coolant — from dripping from the upper vehicle onto the one parked below. In a dealership or luxury storage facility where vehicle presentation matters, this keeps inventory clean and reduces the risk of damage claims.

Where the BiPark Fits Best

Car Dealerships

For dealerships working with limited showroom or storage space, the BiPark allows two vehicles to occupy the footprint of one — without requiring a pit or structural modification. New inventory, trade-ins, and pre-delivery vehicles can all be managed more efficiently, and the operational simplicity of the system means any staff member can use it safely with minimal training.

Car Rental Operations

Rental fleets face a constant challenge with space — peak periods require maximum vehicle availability, while off-peak periods mean a lot of idle cars needing efficient storage. The BiPark’s compact footprint and straightforward operation make it a practical addition to any rental facility looking to make better use of its parking capacity.

Cars & Coffee and Enthusiast Events

For venues that host regular Cars & Coffee gatherings or enthusiast events, the BiPark offers a way to display or store a greater number of vehicles within a defined space. The ability to park vehicles facing either direction — without needing to balance the load precisely — makes vehicle placement faster and more flexible on event days.

Luxury Vehicle Storage Facilities

Private storage facilities catering to collector cars and high-value vehicles need equipment that matches the standard of what’s being stored. The BiPark’s Italian engineering, fluid-channeling platform, and passive safety systems make it a credible choice for facilities where vehicle condition and client trust are paramount.

Available Through Nelca Systems

NELCA Systems carries the OMER BiPark as part of its parking lift range for Canadian residential and commercial clients. We work with facility operators, architects, and contractors to specify the right system for every project — and connect clients with trusted installers across Canada.