Promove XP300 Hydraulic Breaker · 4–9 t excavators
Hydraulic breaker for Komatsu PC55MR-5 (5.2–5.3 t) – Promove XP300
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hello@thunderline.eu · Same-day reply · usually within 2 hours
The Komatsu PC55MR-5 is a crawler mini excavator of 5.2–5.3 t. For this weight we recommend the Promove XP300 hydraulic breaker: the machine sits in the lower part of the optimal range (4.5–8 t) of the XP300. Anything beyond the weight class is confirmed individually with your machine data.
According to Komatsu, the operating weight is about 5.2 to 5.3 t. Predecessors and variants such as the PC55MR-3 are close in weight, but are checked separately.
Does the Promove XP300 fit the Komatsu PC55MR-5?
| Criterion | Komatsu PC55MR-5 (according to Komatsu) | Promove XP300 (according to Promove) | Assessment |
|---|---|---|---|
| Operating weight | 5.2–5.3 t | 4–9 t, optimal 4.5–8 t | ✓ inside the carrier class |
| Auxiliary flow | depends on configuration | 50–60 l/min | confirmed with your machine data |
| Pressure / relief valve | depends on configuration | operating 110–130 bar, relief valve on the excavator 180 bar | relief valve setting confirmed with your machine data |
| Return line | direct return to tank: please check | max. back pressure 25 bar | confirmed with your machine data |
| Quick coupler | type on your machine: please check | bolted top plate; quick coupler not included | send us the coupler type |
Machine data according to the manufacturer; values vary with equipment and year of build. Auxiliary flow and pressure are not stated here – we confirm it with your machine data before we quote.
Why the XP300 for the Komatsu PC55MR-5
The XP300 is built for carriers of 4–9 t and runs on 50–60 l/min at 110–130 bar with a tool diameter of 80 mm and a working weight of 300 kg. Matching breaker weight to machine weight keeps the Komatsu PC55MR-5 stable and protects boom and pins; matching oil flow keeps the blow rate in the range Promove specifies. More machines in this class: breakers for 4–9 t excavators.
No other Promove breaker covers the full weight range of the Komatsu PC55MR-5, so the XP300 is our only recommendation for this machine.
Fit notes
- Oil flow: if the auxiliary circuit delivers more than 50–60 l/min, it is limited on the machine.
- Relief valve: set to 180 bar for the XP300.
- Return: a direct return to tank keeps back pressure below 25 bar.
- Each point is settled with your machine data before we quote.
Promove XP300 hydraulic breaker: key data
- Carrier 4–9 t (optimal 4.5–8 t)
- Oil flow 50–60 l/min, operating pressure 110–130 bar
- Working weight 300 kg, tool Ø 80 mm
- Impact energy 946 J
- Scope of supply: breaker with bolted top plate, hydraulic hoses and a moil point. A quick coupler is not included.
- CE marked – manufacturer’s EU Declaration of Conformity supplied with the machine on delivery.
- 12-month warranty from delivery, claims handled through Thunderline. Wear parts (chisels, points, hoses) and damage from misuse, incorrect installation or operation outside the datasheet limits are not covered.
Authorised Promove dealer. Competitive dealer pricing – request a quote.
Delivery in the EU · freight quoted separately.
B2B only, reverse charge: we sell only to companies with a valid EU VAT number issued in the country of delivery, checked in VIES before payment. Deliveries within Estonia: Estonian VAT 24% is added. Thunderline OÜ is an Estonian company, so the reverse charge does not apply to Estonian buyers, even with a VAT number.
Frequently asked questions
Does the XP300 fit my Komatsu PC55MR-5?
By weight, yes: 5.2–5.3 t is inside the 4–9 t class of the XP300. Hydraulics, return line and coupler depend on equipment and year of build – we confirm it with your machine data before we quote.
Which hydraulic settings does the Komatsu PC55MR-5 need?
An auxiliary circuit with 50–60 l/min, the relief valve at 180 bar and a return with max. 25 bar back pressure. We confirm the values with your machine data.
Breaker or sorting grab for the Komatsu PC55MR-5?
Promove sorting grabs are built for 3–5 t and 6–11 t carriers, so for this machine we offer the breaker only.
What is included? Is a quick coupler included?
Breaker with bolted top plate, hydraulic hoses and a moil point. A quick coupler is not included; send us the type on your machine with your enquiry.
How do quote, payment and delivery work?
B2B only, with a valid EU VAT number. You get a written quote with freight as a separate line; payment by SEPA bank transfer in advance against our proforma invoice. Delivery to your business address in all EU countries except Italy, 12-month warranty from delivery.
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Get a quote for your Komatsu PC55MR-5
Send us the serial number, quick coupler type and country of delivery of your Komatsu PC55MR-5. We reply with the fit and a written quote, with freight as a separate line.
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Komatsu and the model names mentioned are trademarks of their respective owners and are used only to describe fitment. Thunderline OÜ is not affiliated with these manufacturers.