R B series Metric |
Description |
unit |
RB1 |
RB2 |
RB3 |
RB5 |
RB6 |
RB8 |
RB10 |
RB15 |
RB18 |
RB20 |
RB22 |
RB22A |
RB26 |
RB28 |
RB30 |
RB35 |
RB35F |
RB40 |
RB40P |
RB45 |
Operation weight |
kg |
78 |
97 |
158 |
180 |
275 |
341 |
510 |
779 |
1366 |
1658 |
1809 |
1819 |
1989 |
2144 |
2577 |
2751 |
3295 |
4136 |
4350 |
4225 |
Required oil flow |
l/min |
25-50 |
25-50 |
25-50 |
30-60 |
40-70 |
50-90 |
60-100 |
80-110 |
150-170 |
150-170 |
160-180 |
160-180 |
130-150 |
150-210 |
180-220 |
180-220 |
190-230 |
200-240 |
200-240 |
200-240 |
Operation pressure |
kg/cm2 |
90-120 |
90-120 |
90-120 |
100-130 |
110-140 |
120-150 |
130-160 |
150-170 |
160-180 |
160-180 |
160-180 |
160-180 |
190-210 |
190-210 |
200-220 |
210-240 |
210-240 |
220-270 |
220-270 |
220-270 |
Impact rate |
bpm |
800-1400 |
700-1200 |
450-950 |
450-900 |
460-860 |
400-800 |
400-800 |
380-700 |
380-750 |
350-750 |
280-450 |
280-450 |
400-600 |
300-450 |
200-350 |
180-300 |
180-300 |
150-210 |
150-210 |
150-210 |
Tool diameter |
mm |
40 |
45 |
53 |
60 |
68 |
75 |
85 |
100 |
125 |
135 |
140 |
140 |
142 |
150 |
155 |
165 |
165 |
175 |
175 |
180 |
Impact power |
J |
240 |
280 |
350 |
400 |
600 |
800 |
1200 |
2100 |
2600 |
3500 |
3700 |
3700 |
4100 |
4900 |
5700 |
6800 |
9000 |
11000 |
12000 |
13000 |
Carrier weight |
ton |
0.8-2.5 |
1.2-3 |
3.1-4.5 |
5.1-5.8 |
6.0-7.5 |
7.0-8.5 |
8.5-13 |
12.5-15.5 |
16-19 |
18-20 |
20-22 |
20-22 |
22-24 |
25-30 |
30-33 |
30-36 |
35-40 |
35-40 |
36-42 |
38-42 |
|
RB series Imperial |
Description |
unit |
RB1 |
RB2 |
RB3 |
RB5 |
RB6 |
RB8 |
RB10 |
RB15 |
RB18 |
RB20 |
RB22 |
RB22A |
RB26 |
RB28 |
RB30 |
RB35 |
RB35F |
RB40 |
RB40P |
RB45 |
Operation weight |
lb |
172 |
214 |
348 |
397 |
606 |
752 |
1124 |
1717 |
3012 |
3655 |
3988 |
4010 |
4385 |
4727 |
5681 |
6065 |
7264 |
9118 |
9590 |
9315 |
Required oil flow |
gal/min |
6.6-13 |
6.6-13 |
6.6-13 |
8-16 |
11-18 |
13-24 |
16-26 |
21-29 |
40-45 |
40-45 |
42-48 |
42-48 |
34-40 |
40-55 |
48-58 |
48-58 |
50-61 |
53-63 |
53-63 |
53-63 |
Operation pressure |
psi |
1305-1740 |
1305-1740 |
1305-1740 |
1450-1886 |
1595-2030 |
1740-2176 |
1885-2320 |
2176-2466 |
2320-2610 |
2320-2610 |
2320-2610 |
2320-2610 |
2756-3046 |
2756-3046 |
2901-3191 |
3046-3481 |
3046-3481 |
3191-3916 |
3191-3916 |
3191-3916 |
Impact rate |
bpm |
800-1400 |
700-1200 |
450-950 |
450-900 |
460-860 |
400-800 |
400-800 |
380-700 |
380-750 |
350-750 |
280-450 |
280-450 |
400-600 |
300-450 |
200-350 |
180-300 |
180-300 |
150-210 |
150-210 |
150-210 |
Tool diameter |
inch |
1.57 |
1.77 |
2.09 |
2.36 |
2.68 |
2.95 |
3.35 |
3.94 |
4.92 |
5.31 |
5.51 |
5.51 |
5.59 |
5.91 |
6.1 |
6.5 |
6.5 |
6.89 |
6.89 |
7.09 |
Impact power |
J |
240 |
280 |
350 |
400 |
600 |
800 |
1200 |
2100 |
2600 |
3500 |
3700 |
3700 |
4100 |
4900 |
5700 |
6800 |
9000 |
11000 |
12000 |
13000 |
Carrier weight |
lb |
1764-5512 |
2646-6614 |
6614-8818 |
11023-13228 |
13228-15432 |
15432-19842 |
15432-28660 |
26455-33069 |
35274-41888 |
39683-44092 |
44092-48502 |
44092-48502 |
48502-52911 |
55116-66139 |
66139-72753 |
66139-79366 |
77162-88185 |
77162-88185 |
79366-92594 |
83776-92594 |
Company Profile
Ramtec CN. - Your Trusted Partner in Engineering Excellence
Ramtec CN. Machinery Co., Ltd. is a premier large-scale manufacturer specializing in hydraulic breakers, seamlessly integrating production, sales, and service. With a state-of-the-art production facility spanning 6,000 square meters and a modern office space occupying 2,000 square meters, our dynamic team of over 70 dedicated professionals, including seasoned hydraulic product engineers, senior mechanical technicians, equipment debugging experts, and skilled assemblers, stands ready to deliver high-quality solutions.
Boasting an impressive annual design and production capacity of 5,000 units, our company is at the forefront of high-end breaker products and Skid Steer Loaders. Our flagship Ramtec breaker series, featuring the high Gas Type-RB series, low Gas Type-RD series, and the innovative fully hydraulic hammer RQ series, along with the robust Rmatec Skid Steer Loader (available in Rating Weights of 850kg and 1200kg), are underpinned by comprehensive production quality monitoring and procurement systems, ensuring stringent control over the assembly process. We are actively seeking global partners to expand our reach and expertise.
Ramtec is unwavering in its commitment to the development of prestigious high-end brands through scientific management methodologies, meticulous manufacturing processes, and pioneering manufacturing concepts. Our adherence to strict production management ensures that we consistently deliver top-tier excavators, loaders, and breakers to the global construction machinery industry. Our products have proudly attained ISO9001 quality management system certification and EU CE certification, underscoring our dedication to excellence.
Firmly entrenched in the construction machinery sector, Ramtec has pioneered over 10 invention patents and secured more than 24 utility models. Our commitment to innovation has earned us accolades such as Shandong High Tech Enterprise, Shandong Specialized and Innovative Enterprise, Shandong Science and Technology Oriented Small and Medium Sized Enterprise, and Yantai Innovative Small and Medium Sized Enterprise.
With craftsmanship guiding our principles, Ramtec looks forward to forging enduring partnerships with individuals and organizations worldwide, striving for a shared vision of success and mutual growth.

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 precursor to Ramtec CN was an agent for Ramtec Finland in Northern China. In 2010, as one of their representatives,
we founded Ramtec CN to champion the Robi brand, a hallmark of Ramtec Finland, across the Chinese market.
In 2013, Ramtec CN embarked on a new journey by establishing its own manufacturing plant, venturing into the development and production of hydraulic breakers and
attachments, under the newly registered Ramtec brand. Although the two companies once collaborated, today, their product offerings have diverged significantly.
The products produced by each company now cater to distinct market needs.
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 : Our products boast an 18-month warranty because all core spare parts are meticulously crafted in-house by Ramtec CN.
This self-reliance in production, without the need for outsourced procurement, empowers us to exercise unparalleled control over material selection and heat-treatment processes.
We assure our customers of the consistent quality and reliability of our products throughout the warranty period (excluding human-induced damage), accompanied by robust guarantees.
Question C : How can we ensure that the product is compatible with the carrier?
Answer C : With extensive experience in technical support and on-the-ground operations, we possess comprehensive Excavator data, which
enables us to precisely align and match dimensions based on the specific brand and series of the customer's carrier, ensuring seamless compatibility and reduced
We offer unparalleled precision in manufacturing, ensuring perfect fit and function for the carrier connections as specified by our customers, all while maintaining competitive communication costs.
Question D : Why haven't we heard of Ramtec CN before?
Answer D : Since its inception, Ramtec CN has been dedicated to local business and services in China, accumulating a wealth of knowledge and expertise over the years.
This experience has empowered us to deliver high-quality products and OEM hydraulic breakers for renowned domestic excavator brands.
In 2024, we expanded our horizons to the global market, handling both Ramtec brand product orders and OEM projects for international clients.