Rich Reach RQ550 51-ton crawler excavator with 296kW Isuzu engine, 200mm breaker capability, Kawasaki hydraulics. DOC+DPF+EGR+VGS (no urea). Ideal for mining, quarry, heavy earthmoving.
Engineered for the most demanding mining, quarry, and large-scale earthmoving operations, the Rich Reach RQ550 is a 51,000 kg (51-ton) class crawler excavator that combines raw power with intelligent efficiency. Powered by an original imported Isuzu 6WG1 engine delivering 296kW at 1800rpm (meeting China National IV emission standard), this machine delivers uncompromising performance while keeping operating costs low — thanks to advanced DOC+DPF+EGR+VGS aftertreatment technology that requires no urea (AdBlue).
With a massive 200mm hydraulic breaker chisel diameter capability, reinforced work equipment, and a Kawasaki positive flow control hydraulic system, the RQ550 ensures high breaking force, fast response, and exceptional fuel economy. Whether it's rock breaking, heavy digging, or tough stripping, the RQ550 is built to maximize your return on investment.
The RQ550 inherits the original imported Isuzu 6WG1 diesel engine — renowned worldwide for its durability and high torque reserve. Rated at 296kW, it provides abundant power for heavy attachments. The post-treatment system integrates DOC, DPF, EGR and VGS turbo technology to meet strict emission regulations without requiring urea injection. This means lower operating costs, no frozen urea issues, and simplified daily maintenance. The optimized engine control mapping ensures precise fuel injection, leading to significant fuel savings in both H (heavy) and S (economy) working modes.
Equipped with genuine Kawasaki main pump and main control valve, the RQ550 features a positive flow control system that perfectly matches power demand. The dual-pump confluence design delivers massive flow (2×360 L/min) for faster cycle times. The large-diameter main spool reduces flow resistance and pressure loss, improving overall efficiency by lowering energy waste. Operators experience responsive, smooth control whether hammering rock or digging hard clay — the system automatically adjusts power for maximum productivity.
The RQ550 comes standard with a heavy-duty 7m boom and 2.5m arm, both reinforced with multiple internal ribs and optimized welding techniques. This rugged structure allows safe mounting of a 200mm chisel diameter hydraulic breaker, delivering tremendous striking force for the toughest rock. Beyond breakers, the machine supports multiple attachments such as vibratory pile drivers and heavy-duty buckets, solving diverse mine site challenges. A dedicated B-mode (breaker mode) automatically adjusts hydraulic pressure and flow for optimal breaker performance, increasing efficiency and prolonging attachment life.
Safety is paramount in mining environments. The Rich Reach RQ550 is fitted with a reinforced skeleton-type mining cab using high-strength tempered glass. Front and top full protection mesh guards are standard, drastically reducing the risk from flying rock debris. The cab’s upgraded sealing system effectively minimizes dust intrusion, water leaks, and noise levels, creating a quieter, cleaner environment for long shifts. Combined with ergonomic pilot controls and adjustable seat, the RQ550 keeps operators productive and safe all day.
The hydraulic oil independent cooling system automatically adjusts fan speed based on oil temperature, maintaining stable component temperatures while reducing parasitic power loss and overall noise. A removable anti-clogging protective mesh on the radiator simplifies cleaning in dusty mining conditions. The operator can choose from four working modes via a simple switch:
The selected mode is automatically stored after shutdown, ensuring the machine restarts in your preferred setup.
At Rich Reach Machinery, we know that uptime is everything. That’s why we back every RQ550 with a comprehensive service package designed to keep your fleet operating at peak performance, even in the most remote mine sites.
We stand behind the RQ550 as a reliable workhorse. Our priority is to minimize your downtime and maximize your return on investment — from first start to thousands of operating hours.
No. The Rich Reach RQ550 is equipped with an advanced DOC+DPF+EGR+VGS aftertreatment system that meets China National IV emission regulations without requiring any urea (AdBlue) injection. This saves on operating costs and simplifies maintenance, especially in cold regions where urea can freeze.
The factory-reinforced boom and arm allow safe mounting of a hydraulic breaker with up to 200mm chisel diameter. The machine includes a dedicated breaker control program (B-mode) to optimize flow and pressure, ensuring maximum impact and longevity.
With a track gauge of 2,740mm and track length of 4,410mm, the RQ550 provides excellent ground pressure distribution. Optional wider track shoes are available for extremely soft ground conditions. The machine’s sealed and lubricated track chains reduce wear in abrasive environments.
Engine oil and filter change interval is 500 hours under normal conditions; hydraulic oil change at 2,000 hours; fuel filters every 500 hours. Always refer to the operator’s manual for specific maintenance schedules based on working conditions. Our after-sales team can provide detailed checklists.
Absolutely. Rich Reach exports to many countries across Southeast Asia, Africa, South America, and the Middle East. We handle complete logistics including container or bulk vessel shipping, customs documentation, and delivery to your project site. Contact our sales team for a tailored shipping quotation.
Yes. We maintain a substantial inventory of genuine Rich Reach and Kawasaki/Isuzu parts. Standard parts can be shipped within 48 hours from our main warehouse in Hefei, China. For strategic partners, we also offer consignment stock programs.
We sincerely invite you to visit Rich Reach Machinery in Hefei, Anhui Province — one of China’s fastest-growing heavy machinery industrial hubs. Inspect the RQ550 production line, witness real-life working demonstrations at our testing ground, and discuss tailored solutions with our engineering team. Our bilingual sales engineers (Amy & Frida) will be happy to arrange factory tours, airport pickup, and local accommodation recommendations.
Factory & Office Address:
No.150, Baogong Ave & Dazhong Rd, Longgang Comprehensive Economic Development Zone, Yaohui District, Hefei, Anhui, China.
(Approx. 250 meters east of Poly·Rolan Spring landmark)
For appointment or pre-visit inquiries, simply contact our sales team via email or WhatsApp. Let us show you how “Golden Quality & High Efficiency” is built — right from the source.
General Sales Inquiries: sales-01@richreach.cn
Regional Manager (Amy): amy@richreach.cn
Phone / WhatsApp (24/7 support):
Frida: +86 193 5538 5977
Amy: +86 182 9752 7921
We respond within 2 business hours (China Standard Time, UTC+8). For urgent after-sales technical support, please always include your machine serial number and a brief description of the issue.
