Technical register for agricultural, construction and commercial machinery · sourced data

Case CX55B – specifications

Series: Case Mini Excavator

Build year not documented · Data origin: Directory data · sources

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With the CX55B, Case offers a model from the Case Mini Excavator series. The engine delivers 28 kW. Rated speed is 2,400 rpm. The unladen weight is 5,130 kg. The pump delivers 99.9 l/min. Working pressure is 230 bar. The engine fitted is the Yanmar 4 TNV 88. The Case Mini Excavator series covers 28 models. Rated output within it ranges from 8.9 to 65.6 kW; the CX55B sits in the lower part of that range with 28 kW. Its immediate neighbours are the CX31B ZTS below it with 22.4 kW and the CX40B above it with 32.1 kW. Unladen weight within it ranges from 1,469.6 to 5,870 kg; here the CX55B sits in the upper part of that range with 5,130 kg. 636 Case models across 32 series are on record.

Case mini excavators CX14 to CX60C – the number as weight class, ZTS for zero tail swing, generations B and C, 9 to 66 kW

Case has listed its excavators under the CX code since 2001, and on the minis the number gives the weight class in hundreds of kilograms: CX14 about 1.4 t, CX17 1.7 t, CX36 3.6 t, CX60 6 t. The letters B and C are generations – B from about 2008, C from 2016 with Stage IV engines – and Series 2 a revision within the B generation. ZTS stands for Zero Tail Swing, the short-tail excavator whose upper structure does not swing beyond the track width and which can therefore work against walls and in street traffic. The CX135SR at the top of the list is not a mini but a 13.5 t short-radius excavator that the sorting placed here.

Read on 3 more paragraphs

The register lists 28 versions with 8.9 to 65.6 kW from three- and four-cylinders of 783 to 4,330 cm³ – mostly Yanmar 3TNV82 and 3TNV88, plus Mitsubishi L3E and Kubota D1305 in the smallest models – at rated speeds of 2,000 to 2,400 rpm, torque from 46 to 236 Nm and operating weights from 1,470 to 5,870 kg.

Mini excavators of this class are the most-hired construction machines of all: the CX17 fits through a garden gate and onto a car trailer, the CX60 replaces the backhoe loader on small sites. Case sources the machines from cooperation within the CNH group, whose sister models run at New Holland as the E series.

On used machines, operating hours, play in boom, stick and bucket pins, the condition of undercarriage and rubber tracks, leak-free cylinders and swivel joint and the function of dozer blade and offset boom are what count.

Sources: SpecCodex register, model data: Case Minibagger, Case Minibagger (manufacturer)

Technical data

Engine

Engine modelYanmar 4 TNV 88correct
Power28 kWcorrect
Rated speed2,400 rpmcorrect

Dimensions and weights

Unladen weight5,130 kgcorrect

Working data

Pump flow99.9 l/mincorrect
Hydraulic pressure230 barcorrect

Where this model stands

Power-to-weight ratio: 5.5 kW/t (28 kW / 5.1 t)

Stronger than 82% of the mini excavators in the register — out of 400 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Case CX55B have?

The Case CX55B delivers 28 kW.

How much does the Case CX55B weigh?

The unladen weight is 5,130 kg.

What to check before buying

  • Check the hour meter against the service records — a replaced instrument is the most common gap.
  • Compare the data plate and chassis number with the papers.
  • Check the weights in the papers against the figures here — attachments change them.
  • Ask about parts availability for this build year — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 6 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.​‍​⁠‌‍‍⁠‌‌‌​⁠‌​‍‍‌‌‌

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Other models in this series

Sources: RitchieSpecs equipment specifications (retrieved August 2026) · Data sources and cross-checks

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