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Excavator trencher on a white background
Groundwork & PilingJY-36 / JY-48 chain trencher series · Excavator attachment

Excavator trencher

A hydraulic chain-cutting attachment for narrow pipe, cable, irrigation and drainage trenches. A side auger moves excavated soil away from the trench; the mounting bracket must suit the excavator.

Trenching depths
915 / 1220 mm
Trenching widths
200 / 300 mm
Hydraulic flow
50–100 / 75–100 L/min
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Product & applications

About the excavator trencher

A hydraulic chain-cutting attachment for narrow pipe, cable, irrigation and drainage trenches. A side auger moves excavated soil away from the trench; the mounting bracket must suit the excavator.

Features & benefits

01

Extended spoil auger

The auger moves excavated soil farther from the trench to reduce soil falling back in.

02

Adjustable working depth

Depth adjustment accommodates different trenching requirements within the selected model’s dimensions.

03

Replaceable mounting bracket

The coupling bracket can be changed for an excavator or skid-steer mounting arrangement.

04

Manganese-alloy cutting teeth

Manganese-alloy teeth form the chain cutting head.

05

Scraper shoe

The scraper shoe helps control splashing soil and gravel near the chain.

Chain, spoil auger and scraper shoe
Chain, spoil auger and scraper shoeThe source labels the cutting chain, teeth, spoil auger and scraper shoe. The mounting frame shown is the loader version; an excavator needs its matching bracket.

Typical applications

  • Pipe and cable routesCut narrow trenches for suitable utility pipe and cable installation.
  • Irrigation linesPrepare trenches sized for irrigation pipe and the project’s burial requirements.
  • Drainage workMatch trench depth and width to the specified drainage layout and ground conditions.
Technical specifications

Chain trencher dimensions and hydraulic requirements

ModelUnitJY-36”JY-48”
Weightkg460520
lb10121144
Trenching Depthmm9151220
Inches36 48
Trenching Widthmm200300
Inches812
Number of  teethPcs2929
Operation Pressure MPa1616
Oil flow l/min50-10075-100
gpm13-2620-26
L*W*Hm1.9*1.2*0.92.9*1.4*0.9
Installation requirements

Confirm the attachment fits your excavator

Before ordering, send the machine identification and the connection, power and working information relevant to this product.

Pin diameters and centre-to-centre distanceClear inside mounting width
D1 / D2
Both pin diameters
C
Pin centre distance
W
Clear mounting width
Pin-on interfaces only. Use the actual machine and attachment drawing.

  1. Excavator mounting bracket

    Specify the excavator or quick coupler and mounting dimensions; the loader frame shown in the series photograph is not an excavator pin connection.

  2. Hydraulic supply

    Compare 16 MPa and the selected 50–100 or 75–100 L/min range with the excavator’s auxiliary circuit.

  3. Attachment weight and clearance

    Check 460 or 520 kg, tool dimensions and clearance through the arm’s working movement.

  4. Trench and ground

    Confirm trench width, depth, soil, stones and underground services before selecting the cutting chain and layout.

Product questions

Excavator trencher questions

Can the illustrated loader frame fit my excavator?

It needs the matching excavator bracket. The product description specifies replaceable coupling brackets; the two mounting interfaces are different.

What is the difference between the two models?

The specifications list 915 mm depth and 200 mm width for 36”, and 1220 mm depth and 300 mm width for 48”, with different weights and flow ranges.

Is excavator weight alone enough to choose this trencher?

No. The specification table does not give an excavator weight range. Check attachment weight, mounting, lifting geometry and hydraulic supply for the intended excavator.

Is it a rock saw or bucket?

No. It uses a powered cutting chain and spoil auger to create a narrow trench.