Spare Parts

PMP PMB Series Mixer Truck Gearboxes

PMP PMB series drum gearboxes, PMB 6 to PMB 9, for 6-20 m3 mixer trucks. 60,000-93,000 Nm, matched by model and part number. 7-day dispatch.

Series	PMP PMB inline drum gearboxes
Models covered	PMB 6, 6.5, 7.1, 7.5, 7.8, 9
Drive	Hydraulic motor input, drum flange output
Selection	By model, ratio and part number
Supply	Original or equivalent, confirmed in writing
Lead time	Around 7 days for stock items
Configuration	Standard, as catalogued

Standard configurationStock item7-day dispatch

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Model selection

PMB series — model comparison

Model	Max. output torque	Ratio	Drum capacity	Dry weight	Max. input speed	Oil capacity
PMB 6 (R100)	60,000 Nm	1:100	6–7 m³	250 kg	2,500 rpm	12 L
PMB 6.5 (R120)	65,000 Nm	1:120 (1:120.3)	8–10 m³	290 kg	2,500 rpm	13 L
PMB 7.1 (R120 / R130)	70,000 Nm	1:120 or 1:130	10–12 m³	305 kg	2,500 rpm	15 L
PMB 7.5 (R130)	75,000 Nm	1:130	12–14 m³	310–345 kg	2,500 rpm	17 L
PMB 7.8 (R140)	80,000 Nm	1:130 or 1:140	14–16 m³	345 kg	2,500 rpm	17 L
PMB 9 (R151)	93,000 Nm	1:151 (1:150)	20 m³ and above	390 kg	2,500 rpm	20 L

Figures are catalogue references from PMP PMB series data. Confirm the ratio and part number on the drum plate before ordering.

About this product

The PMB inline gearbox is the drum drive fitted to concrete mixer trucks from 6 to 20 m³. Six models cover the range: PMB 6 and 6.5 for small and medium drums, PMB 7.1 and 7.5 for the 10-14 m³ trucks most fleets run, PMB 7.8 for 16 m³ and PMB 9 for 20 m³ and above.

This is a standard unit: catalogued by model and part number and supplied as built, not machined to a buyer drawing. Tell us the mixer or plant model you are fitting and we confirm the exact unit — or the nearest current equivalent if the original has been superseded — before you pay.