
Low Gas Type - Ramtec RD series is renowned for its exceptional stability and excellence among hydraulic breakers.
The innovative product structure design has been rigorously validated by the market over an extended period.
Thanks to the meticulous craftsmanship of the Ramtec technical team, the latest RD series boasts outstanding high-temperature resistance, rapid operational frequency, robust impact force, and superior reaction force control.
It has long been cherished by a wide array of construction machinery enthusiasts.
The components are designed for simplicity and ease of replacement, making it effortless for operators to maintain and swap out parts.
The lightweight fuselage design significantly alleviates the load on the excavator, enhancing the hydraulic excavator's lifespan while minimizing carrier vibration and wear.
With its remarkable high-temperature resistance, it is an ideal choice for projects situated in regions with elevated construction temperatures.
RD series Metric |
Description |
unit |
RD5 |
RD6 |
RD9 |
RD125 |
RD175 |
RD225 |
RD275 |
RD375 |
RD475 |
RD500 |
RD550 |
RD600 |
RD700 |
RD800 |
Operation weight |
kg |
285 |
349 |
465 |
865 |
1120 |
1750 |
1999 |
2200 |
2800 |
3995 |
4850 |
5010 |
6814 |
7911 |
Required oil flow |
l/min |
40-70 |
50-90 |
65-110 |
90-120 |
90-120 |
130-150 |
130-150 |
150-190 |
180-250 |
200-270 |
220-290 |
220-290 |
230-300 |
250-330 |
Operation pressure |
kg/cm2 |
110-140 |
120-150 |
130-160 |
140-160 |
150-170 |
160-180 |
180-200 |
180-200 |
180-200 |
220-270 |
220-270 |
220-270 |
220-270 |
230-300 |
Impact rate |
bpm |
750-980 |
600-950 |
550-900 |
450-850 |
400-750 |
350-700 |
350-700 |
300-650 |
260-450 |
200-370 |
150-210 |
150-210 |
120-170 |
100-150 |
Tool diameter |
mm |
68 |
75 |
90 |
110 |
120 |
135 |
140 |
155 |
165 |
180 |
195 |
200 |
210 |
235 |
Impact power |
J |
600 |
800 |
1350 |
1800 |
2000 |
3600 |
4100 |
5000 |
7100 |
13500 |
18500 |
20000 |
23000 |
27500 |
Carrier weight |
ton |
5-7 ton |
6-8 ton |
9-11 ton |
12-14 ton |
14-18 |
18-21 |
22-26 |
26-32 |
36-42 |
42-48 |
48-55 |
50-62 |
62-68 |
68-85 |
|
RD series Imperial |
Description |
unit |
RD5 |
RD6 |
RD9 |
RD125 |
RD175 |
RD225 |
RD275 |
RD375 |
RD475 |
RD500 |
RD550 |
RD600 |
RD700 |
RD800 |
Operation weight |
lb |
628 |
769 |
975 |
1907 |
2469 |
3858 |
4407 |
4850 |
6173 |
8807 |
10692 |
11045 |
15022 |
17441 |
Required oil flow |
gal/min |
11-18 |
13-24 |
18-28 |
24-32 |
24-32 |
34-40 |
34-40 |
40-50 |
48-66 |
53-71 |
58-77 |
58-77 |
61-79 |
66-87 |
Operation pressure |
psi |
1595-2031 |
1740-2176 |
1885-2320 |
2031-2320 |
2176-2466 |
2321-2611 |
2611-2901 |
2611-2901 |
2611-2901 |
3191-3916 |
3191-3916 |
3191-3916 |
3191-3916 |
3336-4351 |
Impact rate |
bpm |
750-980 |
600-950 |
550-900 |
450-850 |
400-750 |
350-700 |
350-700 |
300-650 |
260-450 |
200-370 |
150-210 |
150-210 |
120-170 |
100-150 |
Tool diameter |
inch |
2.68 |
2.95 |
3.54 |
4.33 |
4.72 |
5.31 |
5.51 |
6.1 |
6.5 |
7.09 |
7.68 |
7.87 |
8.27 |
9.25 |
Impact power |
J |
600 |
800 |
1350 |
1800 |
2000 |
3600 |
4100 |
5000 |
7100 |
13500 |
18500 |
20000 |
23000 |
27500 |
Carrier weight |
lb |
11023-15432 |
13228-17637 |
19842-24251 |
26455-30865 |
30865-39683 |
39683-46297 |
48501-57320 |
57320-70548 |
79366-92594 |
92594-105822 |
105821-121254 |
110231-136687 |
136686-149914 |
149914-187393 |

Company Profile
Ramtec CN. - Your trusted partner in manufacturing excellence
Ramtec CN. Machinery Co., Ltd. Specializing in hydraulic breakers, Ramtec CN. Machinery Co., Ltd. is a renowned manufacturer that seamlessly integrates production, sales, and service. Our expansive facility boasts a 6,000-square-meter state-of-the-art production workshop and 2,000 square meters of modern office space, staffed by a dynamic team of over 70 dedicated professionals. This talented team includes seasoned engineers with extensive expertise in hydraulic technologies, along with senior mechanical technicians, equipment debugging experts, and skilled assemblers, all committed to excellence.
With a formidable annual design and production capacity of 5,000 units, Ramtec is at the forefront of producing elite breaker products and Skid Steer Loaders. Our flagship Ramtec breaker series offers the high Gas Type-RB series, the low Gas Type-RD series, and the innovative RQ series of fully hydraulic hammers. Complementing these are the robust Rmatec Skid Steer Loaders with ratings of 850kg and 1200kg. We maintain the highest standards through a comprehensive production quality monitoring system, a meticulous procurement monitoring system, and rigorous assembly process controls. We warmly invite global partners to join us in this exciting journey.
Dedicated to the advancement of premium brands, Ramtec leverages scientific management techniques, precision-driven manufacturing processes, groundbreaking concepts, and stringent production oversight. Our commitment to excellence delivers exceptional excavators, loaders, and breakers to the global construction machinery market. Proudly, our products meet the rigorous standards of ISO9001 quality management and have earned EU CE certification, underscoring our dedication to quality and innovation.
Firmly anchored in the construction machinery sector, Ramtec has achieved over 10 invention patents and holds more than 24 utility models. Our innovative spirit has earned us distinguished accolades, including recognition as a Shandong High-Tech Enterprise, a Shandong Specialized and Innovative Enterprise, a Shandong Science and Technology-Oriented Small and Medium-Sized Enterprise, and a Yantai Innovative Small and Medium-Sized Enterprise.
At Ramtec, craftsmanship is the heart of our mission, inspiring our journey toward the future. We eagerly anticipate collaborating with global partners from every sector to build a prosperous and mutually rewarding future.
Certifications
FAQ:
Question A: What is the connection between Ramtec CN and Ramtec Robi in Finland?
Answer A: Originally, Ramtec CN served as a regional agent for Ramtec Finland in Northern China. In 2010, we took a major step forward by
establishing Ramtec CN in China, aiming to promote Robi brand products from Ramtec Finland. This strategic move allowed us to
grow and evolve, leading to the creation of our own manufacturing facility in 2013 where we began pioneering the development of
hydraulic breakers and attachments under our newly registered Ramtec brand. Although our paths have diverged, with each company
now producing distinct products, our shared history has laid a strong foundation for excellence.
Products of Ramtec Finland Company - Robi Brand
Products of Ramtec China Company - Ramtec Brand
Question B: Why does the warranty period extend to 18 months?
Answer B: At Ramtec CN, we proudly produce all our core spare parts in-house, which eliminates reliance on external suppliers. This practice
ensures meticulous selection of materials and precision in heat-treatment control, empowering us to guarantee product reliability during
the warranty period, provided there is no human interference, thus offering our customers unwavering assurance and peace of mind.
Question C: How do you ensure compatibility of your products with the carrier?
Answer C: Our extensive experience in technical support and on-site operations has equipped us with comprehensive Excavator data. This
enables us to accurately match the dimensions based on the customer's specified brand and series, minimizing communication efforts.
Additionally, we offer precise custom manufacture for carrier connections as provided by our clients, ensuring seamless integration.
Question D: Why is Ramtec CN not widely known until now?
Answer D: Since its inception, Ramtec CN has focused on delivering stellar business operations and services within China. Through years of
hands-on experience, we have honed our ability to produce superior products and provide OEM hydraulic breakers for leading domestic
excavator brands. In 2024, we expanded our horizons, embarking on fulfilling Ramtec brand orders and OEM services for international markets.