ECHO Master Catalogue 2025

SPECIFICATIONS CHAIN SAWS

CHAIN SAWS

CS-4920

CS-501SX

CS-501SXH

CS-590

CS-620SX

CS-621SX EU, TUR

Configuration

EU

EU

EU

EU, AUS, TUR

BASIC

Engine displacement (cm 3 )

50.1

50.2

50.2

59.8

59.8

59.8

Output (kW / ps) Dry weight (kg)* 1

2.5 / 3.4

2.57 / 3.50

2.57 / 3.50

2.98 / 4.05

3.3 / 4.5

3.2 / 4.4

5.0

4.7

4.9

6.0

6.2

6.3

Fuel tank capacity (mL) Chain oil tank capacity (mL)

480 330 1.32

500 280 1.54

500 280 1.54

645 300 1.75

645 300 2.05

650 300 1.81

Fuel consumption at maximum engine power (L/h)

-

-

-

-

-

Priming pump Ignition system

¡

CDI

CDI

CDI

CDI

CDI

CDI

Start assist system

ES-Start

Decomp

Decomp

Decomp

Decomp

Decomp

Chain brake

Inertia

Inertia

Inertia

Inertia

Inertia

Inertia

Choke w/ automatic fast idle release

¡

¡

¡

¡

¡

¡

Chain tensioner

Side

Side

Side

Side

Side

Side

Saw chain pitch (inch) Guide bar gauge (inch)

0.325 0.050

0.325

0.325 0.058

3/8

3/8

3/8

0.058, 0.050

0.058

0.058

0.058

33, 38, 45, 50 / 13, 15, 18, 20

40, 45, 50 (33) / 16, 18, 20 (13)

40, 45, 50 / 16, 18, 20

40, 45, 50 / 16, 18, 20

45, 50, 60 ,70 / 18, 20, 24, 28

45, 50, 60 / 18, 20, 24

Applicable bar length (cm / inch)

Vibration Front handle / Rear handle (m/s 2 )* 2

3.5 / 3.4

5.5 / 5.8

5.2 / 5.4

5.0 / 4.9

- - - - - -

4.5 / 3.2

102.5 111.8

105.5 113.1

102.6 112.2

102.7 113.3

103.2 113.7

Sound pressure level (dB(A))* 2 Sound power level (dB(A))* 2

1.3 1.5 1.0

1.5 3.0 3.0

1.3 1.5 1.0

1.5 3.0 3.0

1.5 3.0 3.0

(K)

Vibration levels (m/s 2 )

Un certainty * 2

(K pA ) (K WA )

Sound pressure levels (dB(A))

Sound power levels (dB(A))

*1: Unit without guide bar, saw chain, chain oil and fuel. *2: Measured in accordance with ISO 22867,22868.

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