Promove XP151 Hydraulic Breaker · 1.8–4 t excavators
Hydraulic breaker for CAT 303 CR (3.0–3.5 t) – Promove XP151
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Promove XP151 Hydraulic Breaker1.8–4 t excavatorsAsk for your quoteView product →
Promove SG 3.4 Rotating Sorting Grab3–5 t excavatorsAsk for your quoteView product →The CAT 303 CR is a crawler mini excavator of 3.0–3.5 t. For this weight we recommend the Promove XP151 hydraulic breaker: the machine sits in the upper part of the optimal range (2.2–3.6 t) of the XP151. Anything beyond the weight class is confirmed individually with your machine data.
According to CAT, the operating weight is about 3.0 t with canopy in the lightest version and about 3.5 t with cab in the heaviest. Predecessors and variants such as the 303E CR are close in weight, but are checked separately.
Does the Promove XP151 fit the CAT 303 CR?
| Criterion | CAT 303 CR (according to CAT) | Promove XP151 (according to Promove) | Assessment |
|---|---|---|---|
| Operating weight | 3.0–3.5 t | 1.8–4 t, optimal 2.2–3.6 t | ✓ inside the carrier class |
| Auxiliary flow | depends on configuration | 25–35 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 XP151 for the CAT 303 CR
The XP151 is built for carriers of 1.8–4 t and runs on 25–35 l/min at 110–130 bar with a tool diameter of 52 mm and a working weight of 165 kg. Matching breaker weight to machine weight keeps the CAT 303 CR 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 2.5–5 t excavators.
The Promove XP200 (2.5–5.2 t, 40–60 l/min) is the heavier option. It only makes sense if the auxiliary circuit of your CAT 303 CR really delivers 40–60 l/min and you mainly break hard material; on lighter configurations the XP151 is the better match.
Fit notes
- Oil flow: if the auxiliary circuit delivers more than 25–35 l/min, it is limited on the machine.
- Relief valve: set to 180 bar for the XP151.
- Return: a direct return to tank keeps back pressure below 25 bar.
- Sorting grab: the SG 3.4 needs two auxiliary circuits (open/close and rotation).
- Each point is settled with your machine data before we quote.
Promove XP151 hydraulic breaker: key data
- Carrier 1.8–4 t (optimal 2.2–3.6 t)
- Oil flow 25–35 l/min, operating pressure 110–130 bar
- Working weight 165 kg, tool Ø 52 mm
- Impact energy 899 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.
For sorting and loading on the CAT 303 CR: the Promove SG 3.4 rotating sorting grab (3–5 t, 265 kg, 100 l, max. opening 1160 mm) needs 30–40 l/min at max. 300 bar for open/close and 5–10 l/min at max. 100 bar for rotation. Included: grab with bolted top plate and hydraulic hoses; quick coupler not included.
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. No VAT is charged by Thunderline OÜ – VAT is accounted for by you in your country of delivery (reverse charge, Art. 141 and 197 Directive 2006/112/EC).
Frequently asked questions
Does the XP151 fit my CAT 303 CR?
By weight, yes: 3.0–3.5 t is inside the 1.8–4 t class of the XP151. 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 CAT 303 CR need?
An auxiliary circuit with 25–35 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 CAT 303 CR?
Both are possible: the XP151 for breaking, the SG 3.4 for sorting and loading. The grab needs two auxiliary circuits.
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 CAT 303 CR
Send us the serial number, quick coupler type and country of delivery of your CAT 303 CR. We reply with the fit and a written quote, with freight as a separate line.
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CAT 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.