The stainless steel bio-digester tank has 06 partition walls inside the tank along with poly grass mats for protection of bacteria.

The Bio-Digester Tank has total volume of 410 litres and working volume of 332 litres. Empty tank weight is 120 kg and full tank weight is 425 kg.

Cartridge Taper Roller Bearing units are used on wheel sets of LHB design coaches. These are self-contained, pre-assembled, pre-lubricated, and fully enclosed units.

Secondary vertical dampers for AC LHB coaches have capacity of 3500 N and color RAL 6027 (Light Green).

Primary vertical dampers for all LHB coaches fitted with FIAT bogie have a capacity of 2500 N and are colored RAL 7012 (Basalt Grey).

The Y-shaped side members of the bogie have minimum strength of 52 kg/mm² with D class weld.

Incandescent lamps of 10 watts are used for night lamp and pantry purposes.

Fluorescent tubes are used for general lighting at 110 Volts AC/DC with inverter and polycarbonate diffusers.

In the present version of chair cars, emergency alarms are provided only at two locations in passengers compartment (not in lavatories).

The seats feature sleeplessly inclinable backrest with 17 degrees in upright position and 37 degrees in rest position.

The height of the seat cushion above floor level is 450 mm, providing excellent seat comfort without causing tiredness.

Weight of a single chair car for II AC chair car is approximately 21 kg against 28 kg in existing IR coaches.

For flooring, 16 mm composite board made from cork panels glued to "MakeOre" wood have been used.

Halogen reading lights for individual seats are fitted into outer extrusion, with wiring hidden by polycarbonate lexan sheet.

The luggage racks can withstand distributed load of 1000 N (100 kgs) per meter length as per UIC 566.

The roller blinds have three positions i.e. full open, half open and full closed, with wire tension enabling wrinkle-free and easy use.

Roller blinds have been provided on the windows in AC Chair Cars instead of curtains. It is a sun protection fabric with manual operation.

Four emergency openable windows are provided in each coach to allow emergency evacuation of passengers.

There are 12 fixed window units per coach with sealed glass units consisting of outer laminated glass and inner tempered safety glass.

Noise level inside coach is limited to 60 DB due to various insulation materials like Resonaflex, de-coupling elements, and elastomeric rubber-metal components.

IRSM-41 CORTEN steel has been used for underframe and other parts, while roof structure, side walls and end walls are made of ferritic stainless steel.

The maximum axle load permissible for LHB coaches is 16.25 tonnes.

The wheels diameter (new) on LHB coaches is 915 mm.

The ride index of coach is 2.5 at 160 Kmph but not greater than 2.75, indicating better passenger comfort.

LHB coaches have higher speed potential of 160 Kmph upgradable to 200 Kmph.

The height of the coach from rail level is 4250 mm for most LHB coaches, except the Double Decker which is 4366 mm.

The maximum width over body of an LHB coach is 3240 mm, except for some special types like the Double Decker which has 3050 mm width.

The length over body of an LHB coach is 23,540 mm, while the length over CBC is 24,000 mm.

LWLRRM is the code for Generator cum Luggage & Brake Van with 5 berths and weight of 53.00 tons.

The AC Double Decker AC Chair Car (EOG) has the code LWCZDAC with 120 seats and weight of 49.53 tons.

According to the important parameters table, the GS Second Class (EOG) coach with code LS1 has a tare weight of 41.19 tons with 100 seats.

LHB coaches have been provided with tight lock centre buffer couplers instead of screw coupling, featuring anti-climbing properties due to vertical interlocking.

Heavy corrosion was a limitation of ICF coaches. LHB coaches have low corrosion due to extensive use of stainless steel.

LHB coaches have low corrosion due to extensive usage of stainless steel and better design and manufacturing techniques.

Replacement and removal of sub-systems in LHB coaches will be required only after one million kilometers, indicating low maintenance requirements.

An LHB AC III Tier coach accommodates 72 passengers as compared to 64 in conventional ICF AC III Tier coaches.

LHB coaches are approximately 2 meters longer than ICF coaches, allowing for two additional rows of chairs in chair cars or one additional bay in sleeper coaches.

The first batch of 24 LHB coaches arrived in India and were commissioned in the year 2001.

The bogies for LHB coaches are manufactured by M/s. FIAT/SIG Switzerland. FIAT stands for Fabrica Italina de Automobil Torino.

Indian Railways entered into a supply and technology transfer contract with M/s. ALSTOM LHB/Germany to initially supply 24 coaches. The first batch arrived in India and was commissioned in 2001.