G250 series

Drum brake type G250 MATEC with external spring

Drum brake type "G"

According to DIN 15435

APPLICATIONS

• Service brake
• Safety brake
• Emergency brake

OPERATION

• Drum brake MATEC type "G" are negative.
• The braking force is obtained by means of a spring that, through a suitable system of levers, transmits its amplified action to the braking pads.
• An electrohydraulic or pneumatic thrustor makes an opposite force to the spring, causing the pads to open, therefore the brake to release.
• The braking force of the linings against the drum can be modulated by adjusting the spring.
• The braking torque varies according to the spring setting.
• The brake may be supplied also without external adjustable spring but with inside “C” spring (foreseen to have the maximum brake torque).

ORIGINAL EQUIPMENT

• Base plate and vertical levers in spheroidal graphite cast iron.
• Horizontal levers in Fe 510.
• Pins and rod in steel C40 galvanized or manganese phosphated.
• Self-lubricating bushes on main joints.
• Light alloy drums with asbestos free bonded linings
• Friction coefficient µ=0,42
• Epoxy resin painting and RAL 3000 final colouring.

OPTIONALS

• Automatic wear compensation.(RG) automatically it provides to the brake opening adjustment function progressive wear of the brake linings.
• Larger drum (L) - 50% wider, recommended for heavy services where it is required a high heat dissipation capacity.
• Open brake indicator, either fitted on thrustor or on spring set (to be specified) (FCA)
• Linings max wear indicator (fitted on rod) (FCU).
• Brake manual opening lever (LSM)
• Stainless steel pins (INOX).

THRUSTOR TYPES

• MATEC type "M" electrohydraulic
• EMG type "ELDRO" electrohydraulic
• EMG type "ELTMA" electrohydraulic
• Pneumatic cylinder (upon request).

BRAKE SELECTION DATA

• Type of application
• Stops per hour
• Required braking torque
• Required voltage (standard 230/400V. – Hz. 50) or air pressure supply.
• Required optional

SHOE BRAKE CODE

• G= Drum brake according to DIN 15435 for thrustor type MATEC “M” – EMG “Eldro” – EMG “Eltma”
• 200-250-315-400-500 the same to the diameter of pulley or flexible coupling
• M22/50 - EB220-50 - ED23/5 ecc. = type of thrustor
• RG= automatic wear compensation
• FCU= linings max wear indicator
• FCA= open brake indicator
• L= wider shoe
• INOX= inox steel pins
• LSM= hand releaser lever

Es.: G200-M22/50-RG-FCA
Diameter 200 Drum brake with thrustor M22/50 – automatic wear compensation – open brake indicator