
Low Gas Type - The Ramtec RD series epitomizes engineering excellence in hydraulic breakers, celebrated for its unmatched stability and unwavering reliability.
The clever and well-thought-out design of this product's structure has stood the test of time, showcasing its merit and durability in the demanding market landscape.
Expertly honed by the brilliant Ramtec technical team, the latest RD series triumphs with exceptional high-temperature resistance, swift frequency, mighty impact force, and exquisite control over reaction force, establishing new benchmarks in the industry.
Cherished by construction machinery aficionados, this product has consistently been the top choice for delivering unrivaled performance and steadfast reliability.
Boasting parts that are easy and swift to replace, this product ensures seamless maintenance and user-friendliness for operators, significantly boosting efficiency.
The cutting-edge lightweight fuselage structure drastically diminishes the strain on excavators, thereby prolonging the hydraulic excavator's lifespan while reducing vibrations and wear on the carrier.
With its extraordinary high-temperature resistance, this product emerges as the definitive choice for projects in regions where construction temperatures reach extreme heights.
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. - The Pinnacle of Professional Manufacturing
Ramtec CN. Machinery Co., Ltd. As a distinguished leader in the hydraulic breaker industry, Ramtec CN. Machinery Co., Ltd. exemplifies unparalleled excellence by expertly blending production expertise, strategic sales acumen, and flawless service delivery. Our state-of-the-art facilities feature an impressive production workshop covering 6,000 square meters alongside a 2,000-square-meter office space, where our passionate team of over 70 professionals, including veteran engineers proficient in hydraulic technology, seasoned mechanical technicians, adept equipment debugging maestros, and skilled assemblers, work tirelessly to ensure superior quality.
With an astounding annual design and production capacity of 5,000 units, Ramtec leads the charge in providing premium breaker solutions and Skid Steer Loaders. Our prestigious Ramtec breaker series includes the cutting-edge high Gas Type-RB series, the highly efficient low Gas Type-RD series, and the revolutionary fully hydraulic hammer RQ series. Complementing this lineup is the formidable Rmatec Skid Steer Loader, available in rating weights of 850kg and 1200kg. We uphold rigorous production quality monitoring and procurement standards, ensuring precise control throughout the assembly process. In our continuous pursuit of excellence, we eagerly invite global partners to join us in broadening our horizons.
Ramtec is unwavering in its dedication to the pursuit of high-end brand development through scientific management, precise manufacturing, revolutionary production philosophies, and strict production oversight. Our steadfast commitment to quality makes us a respected provider of exceptional excavators, loaders, and breakers in the global construction machinery arena. Our products proudly display the ISO9001 quality management certification as well as the esteemed EU CE certification.
Firmly rooted in the construction machinery industry, Ramtec has garnered over 10 invention patents and 24 utility models, showcasing its innovative prowess. Our accolades include recognition as a Shandong High-tech Enterprise, Shandong Specialized and Innovative Enterprise, Shandong Science and Technology Oriented SME, and Yantai Innovative SME.
Our unwavering commitment to craftsmanship is the bedrock of our vision and leadership in the industry. We warmly invite partners from across the globe to join us in collaboration, as we forge a bright and prosperous future together.
Certifications
FAQ :
Question A : There is also a Ramtec Robi in Finland, what is the relationship between Ramtec CN and the one in Finland?
Answer A : The proud origins of Ramtec CN trace back to its influential role as an agent for Ramtec Finland in Northern China. By 2010, leveraging the robust collaboration as an agent
for Ramtec Finland throughout China, we strategically established Ramtec CN to diligently promote the esteemed Robi brand products from Ramtec
Finland. In a bold expansion in 2013, Ramtec CN launched its own manufacturing facility, focusing on innovative research and production of high-quality hydraulic breakers and
attachments, thus creating and registering our Ramtec brand product line. Although Ramtec CN and Ramtec Finland were once cooperative allies, our current product offerings now stand distinct and unique.
The products manufactured by both companies have diverged, showcasing our growth and independent product expertise.
Products of Ramtec Finland company - Robi Brand
Products of Ramtec China company - Ramtec Brand
Question B : Why is the warranty period 18 months?
Answer B : At Ramtec CN, the extended 18-month warranty period is a testament to our unparalleled confidence in our craftsmanship. By producing all core spare parts in-house, free from outsourced procurement,
we exercise meticulous control over material selection and heat-treatment processes. This dedication ensures that our customers enjoy peace of mind and assured product reliability throughout the
warranty period (barring human-induced damage), backed by our unwavering commitment to quality and customer satisfaction.
Question C : How can we ensure that the product is compatible with the carrier?
Answer C : With extensive technical support experience and hands-on site expertise, we possess a comprehensive database of Excavator specifications, enabling precise matching of dimensions by brand and series,
provided by the customer. This precise alignment significantly reduces communication costs. Additionally, we offer customized precision manufacturing for carrier connections tailored to the customer's exact specifications.
Question D : Why have we never heard of Ramtec CN before?
Answer D : Since its inception, Ramtec CN has been deeply rooted in local China, where our long-standing commitment has fostered remarkable expertise in field operations, culminating in top-tier product quality.
We have proudly provided OEM hydraulic breakers for prominent domestic excavator brands and, since 2024, have expanded to handle Ramtec brand product orders and OEM services for international markets.