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Our most sought-after sealing products, engineered to meet the rigorous demands of Boston's hydraulic and pneumatic applications.
KELONG Hydraulic Oil Seal Wear-resistant And Durable Piston Seal 140*150*6 Yellow Rod Oil Seals
KL78 Single Acting Pneumatic Rod Seals PU / NBR Material Low Friction
Kelong Hydraulic Piston Seals PTFE / NBR Material for mobile machinery
Hydraulic Piston Compact Reciprocating Seals In NBR For Cylinders
Boston, Massachusetts stands as one of the most industrially diverse and technologically advanced cities on the U.S. East Coast. Home to world-class universities, research hospitals, biotech clusters, and a revitalized manufacturing sector, Boston's industrial ecosystem places extraordinary demand on precision-engineered sealing components — particularly piston rod seals.
From the Seaport District's innovation labs to the industrial corridors of East Boston and Chelsea, hydraulic and pneumatic systems are at the heart of everything from medical device testing equipment to offshore maritime machinery and heavy-duty construction equipment servicing the city's ever-expanding infrastructure.
The Greater Boston Area is home to over 4,000 manufacturing establishments, with key sectors including aerospace & defense, biomedical engineering, marine technology, and civil construction. All of these industries rely heavily on hydraulic cylinders and pneumatic actuators — systems where piston rod seals are mission-critical components.
Boston's industrial environment is uniquely challenging. The coastal climate brings humidity and salt air, demanding seals that resist corrosion and moisture ingress. Seasonal temperature extremes — from sub-zero winters to humid summers — require elastomers capable of maintaining integrity across wide thermal ranges.
The city's ongoing infrastructure renewal projects, including MBTA system upgrades, the expansion of Logan International Airport, and the Big Dig aftermath maintenance works, all involve heavy hydraulic machinery that operates continuously in demanding conditions.
Meanwhile, Boston's life sciences and biomedical manufacturing sector — one of the world's largest — requires sealing solutions that meet FDA-grade material standards, with ultra-low contamination profiles suitable for cleanroom environments.
For all these reasons, Boston-based buyers and procurement managers are actively sourcing premium piston rod seals from international exporters who can offer competitive quotes, fast lead times, and proven technical credentials.
The sealing industry is undergoing rapid transformation driven by Boston's advanced R&D culture, sustainability mandates, and demand for smarter industrial systems.
Boston's robotics and automation companies are pushing for seals embedded with micro-sensors that can monitor wear, pressure differentials, and leakage in real time — enabling predictive maintenance and reducing downtime in high-value production lines.
Driven by Massachusetts' stringent environmental regulations and the biotech sector's material requirements, demand is surging for PTFE, PEEK, and bio-inert NBR seals that perform without leaching harmful substances into hydraulic fluids or surrounding environments.
Boston's world-leading life sciences corridor demands micrometer-tolerance seals for drug manufacturing equipment, lab automation systems, and medical device hydraulics — a niche that requires specialized tooling and material expertise.
With Boston Harbor's active maritime industry and offshore wind development off the New England coast, seals must withstand saltwater exposure, high-cycle fatigue, and wide pressure ranges — driving demand for FKM and HNBR materials.
Boston's multi-billion-dollar infrastructure investment pipeline — including transit expansion, road construction, and building projects — keeps demand high for heavy-duty hydraulic cylinder seals capable of withstanding millions of pressure cycles.
Post-pandemic supply chain disruptions have prompted Boston manufacturers to diversify sourcing. Reliable international exporters offering certified products, rapid delivery, and OEM/ODM capabilities have become preferred partners across industries.
Seals used in lab automation, pharmaceutical processing equipment, and medical device hydraulic systems along the Longwood Medical Area and Kendall Square clusters.
Hydraulic actuator seals for ground support equipment, airport infrastructure, and the growing aerospace MRO (maintenance, repair & overhaul) sector in the Greater Boston area.
Pneumatic and hydraulic seals for door actuators, suspension systems, and braking mechanisms across Boston's extensive subway, commuter rail, and bus rapid transit networks.
High-pressure piston seals in excavators, cranes, concrete pumps, and tunneling equipment serving Boston's ongoing urban development and infrastructure expansion projects.
Marine-grade rod seals for cargo handling equipment, ship hydraulic systems, and offshore energy infrastructure serviced from Boston's deep-water port facilities.
High-performance seals for wind turbine pitch and yaw control systems supporting New England's rapidly growing offshore wind sector, including projects in Massachusetts Bay.
Precision pneumatic rod seals for robotic assembly systems, CNC machinery, and smart factory automation in Boston's resurgent advanced manufacturing ecosystem.
Sealing solutions for hydroelectric systems, battery manufacturing equipment, and renewable energy power conversion hydraulics serving Boston's carbon-neutral energy goals.
| Main Market | North America, Western Europe, Eastern Europe, Eastern Asia, Oceania |
| Business Type | Manufacturer, Trading Company |
| No. of Employees | 300~500 |
| Annual Sales | 60,000,000 - 80,000,000 |
| Year Established | 1996 |
| Export p.c | 30% - 40% |
| Customers served | 100 |
With over 28 years of manufacturing excellence, ISO certifications, and proven export expertise to North America, Kelong New Materials is your ideal sourcing partner for piston rod seals in the Boston market. Competitive quotes, fast delivery, and full OEM/ODM support.
Shaanxi Kelong New Material Technology Co., Ltd. was established in 1996. It is a high-tech enterprise, integrating R&D, production and sales. The main products are combined sealing products, High Pressure Hydraulic Hose and Long wall Chock Haulers. The products produced are mainly applicated for coal mining, metal mining, also widely used in civil aviation, high-speed railway, wind power and other fields. The sealing products adopt the equipment and production technology of DMH Company in Austria. Hydraulic hose production base adopts a complete set of equipment imported from Italy, with an annual output of more than 15 million meters of various hydraulic hoses. Our total annual output value more than 58 millions of dollars. There are more than 500 employees. Has an independent R&D center to support OEM and ODM projects. The annual R&D investment accounts for more than 5.6% of the total revenue of the year. The main sales markets of our products are Asia, Oceania, East Euro and other regions, with ISO system and IRIS certificates. We look forward to working with coal main industry of Indonesia Enterprises and Importers.
Kelong New Material is a dynamic manufacturer and distributor of sealing solutions, supplying a wide range of standard and customized products and services to a vast range of industries. We have our own R&D center and technology center, which can produce customized products according to customers' needs. For different working environments and working conditions, we provide customers with specialized solutions on the basis of technical support.
At present, the company's total assets are 600 million RMB, with an annual output value of 300 million RMB. There are more than 400 employees in the company, including nearly 180 engineers and technicians, more than 40% of the total number of college graduates. Enterprise R&D personnel accounted for 17.5%. In the past three years, R&D investment accounted for more than 7% of the total income of the year.
The company is the top three in the domestic coal machine sealing industry. High-pressure rubber hoses and Frame-type handling vehicles are expected to enter the top three within two years. The main products share 8% in domestic market.
We will focus on technological innovation and continuously improve the technological content of products, so that the company's technology and products are always at the forefront. We will always sincerely welcome you to visit and cooperate with us — together create a brilliant future!
Procurement teams in Boston's manufacturing, defense, and life sciences sectors operate under some of the most stringent quality and compliance requirements in the nation. When sourcing piston rod seals, buyers must navigate material certifications (RoHS, FDA, REACH), dimensional standards (ISO, DIN, AS568), and supplier qualification processes that can take months without the right partner.
Boston-based distributors typically mark up imported sealing components by 30–60% to cover logistics, warehousing, and service margins. By working directly with certified exporters like Kelong New Materials, Boston buyers can significantly reduce per-unit costs while gaining direct access to technical engineering support and OEM customization capabilities.
Material Compatibility: Boston's diverse industrial base requires seals in a range of elastomers. NBR (Nitrile) remains the workhorse for general hydraulic applications. PTFE compounds offer the low-friction, chemical-resistant performance required in biotech and semiconductor manufacturing. FKM (Viton) excels in Boston Harbor's marine environments where fuel contamination and elevated temperatures are concerns.
Pressure & Temperature Ratings: Construction and infrastructure applications in Boston commonly operate at 200–400 bar, while precision medical and lab equipment may require seals that perform at much lower pressures but with micron-level dimensional accuracy. Always verify the seal's working pressure envelope matches your system specifications.
Dynamic vs. Static Applications: Piston rod seals are inherently dynamic — they must accommodate continuous reciprocating motion without generating excessive friction, wear, or heat. Products like our KL78 Single Acting Pneumatic Rod Seals are specifically engineered for low-friction dynamic performance across Boston pneumatic systems.
The economics of industrial sealing favor direct international sourcing for medium-to-large volume requirements. Kelong New Materials offers Boston-area buyers access to over 5,000 SKUs of standard sealing products with competitive ex-works pricing, combined with the engineering flexibility to develop custom profiles for unique Boston application requirements.
Our North American market expertise — built over decades of supplying clients across the United States, Canada, and Mexico — means we understand local standards, documentation requirements, and the lead time expectations of Boston procurement departments. We maintain consistent quality through ISO-certified production processes backed by Austrian sealing technology from DMH Company.
Whether you need 50 pieces of a standard rod seal profile for immediate maintenance requirements or 50,000 custom-engineered seals for a new Boston manufacturing installation, Kelong New Materials provides fast, accurate quotations with full technical documentation. Our engineering team can review your application specifications, suggest optimal material and geometry combinations, and provide samples for validation — all within industry-leading lead times.
Explore our full range of hydraulic and pneumatic sealing products — engineered to meet the performance demands of every Boston industrial application.
KELONG Hydraulic Oil Seal Wear-resistant And Durable Piston Seal 140*150*6 Yellow Rod Oil Seals
KL78 Single Acting Pneumatic Rod Seals PU / NBR Material Low Friction
Kelong Hydraulic Piston Seals PTFE / NBR Material for mobile machinery
Hydraulic Piston Compact Reciprocating Seals In NBR For Cylinders
Abrasion Resistant Compact Piston Seal KL44 Three Pieces Compact Set
Silicone / FKM / NBR Waterproof Rubber O Ring Wear Resistant High Temperature O Ring Seals
Double Acting Pneumatic Piston Seals For Small Grooves ISO Approved
PTFE / NBR Bidirectional Piston Seal Kit For Piston Accumulators Support Cylinders And Positioning Cylinders