Diang Precision Auto Parts

A steering system responsible for one of the basic functions of a car, the "turning function".

DIANG offers steering systems suitable for every vehicle segment. The electric power steering system developed by us in 1988 first in the world is superior in fuel consumption as well as in the ease of installation and boasts the top share even now.

STEERINGS

Electric Power Steerings (EPS)

Column type electric power steerings

Because the power assist unit is located in the cabin, this type of steering system is suitable for compact vehicles that have a smaller space in the engine room.
This type is adopted in principle for light, compact and medium cars.

Dual pinion type electric power steerings

Because the assist function of this steering system is separated from the steering wheel shaft, the degree of freedom of installation is enhanced and, together with an optimum strength design, a large output is realized.

Electric pump type hydraulic power steerings

This is an energy-saving hydraulic power steering system with which the hydraulic pump is driven under microcomputer control.
With idle stop mode support, the energy consumption in the non-steering mode (in straight-ahead travel) is reduced by about 80% (10-15 mode) when compared in horsepower.

Pinion type electric power steerings

This steering system is provided with a power assist unit at the pinion shaft (inside the engine room) and it features calmness when compared with the column type.

Rack direct drive type electric power steerings

Because the rack shaft is directly assisted, low friction, low inertia and ideal steering feel are realized.

STEERINGS

Hydraulic Power Steerings (HPS)

Ball screw type manual power steerings

The hydraulic power provides large-output and enhanced follow-up capability and natural power assistance.
The system features a high power and smooth steering feel even for trucks and buses.

Electronically controlled type hydraulic power steerings

The hydraulic steering system and electronic control realize an ideal steering feel matching the vehicle speed.

Rack and pinion type manual power steerings

The system provides high-output, enhanced follow-up capability and natural power assistance with the hydraulic power.
A gentle and smooth steering feel is provided.
The system can be installed in various models such as light four-wheel-drive vehicles and RV vehicles.

STEERINGS

Units - Components

Electronically controlled variable-gear-ratio steerings

The steering gear ratio can be varied according to the vehicle speed, so that a smaller steering angle produces a larger tire steering angle during low-speed travel or parking motions while the steering motion produces a smaller steering angle of the tire during high-speed travel, thereby increasing stability.
The function of this product is also used in the automobile collision avoidance support system, steering control at vehicle skid, and lane maintenance support system.

Input shafts

Fully-automated line with integrated forging and turning line + material supply, machining, and inspection connected by automatic transfer equipment, realizing high-yield and high-efficiency production, taking advantage of the features of an integrated forging and turning company.

Intermediate shafts

A linkage shaft between the steering wheel and steering gear needs large torsional rigidity.
The gap at the joint and slide is reduced, reserving calmness even during travel on rough terrains.

Lower shafts

Highly efficient production is carried out on a fully automated line connected by automatic transfer equipment, including material supply, NC lathe, serration rolling machine, screw rolling machine, grinder inspection machine, and others.

Power boxes

Production is carried out on a line combining specialized machines developed in-house that are highly efficient according to product conditions. Finished products are directly assembled and shipped without post-processing to ensure a high level of quality.

Power steering pumps - Hydraulic hoses - Reservoir tanks

A pump generating a hydraulic power needed for the hydraulic steering system, transmission hose, reservoir tank and other components are provided in an optimized system.

Steering columns

Supports energy absorption at tilting and telescopic motions as well as at collision.

Variable flow control pumps (V.F.C pumps)

A pump generating a hydraulic power needed for the hydraulic steering system, transmission hose, reservoir tank and other components are provided in an optimized system.