エム・オー・テック List of Products and Services

Hallite 714 is a combination seal made of glass fiber reinforced nylon (GFN) for the face seal and rubber energizer, which excels in wear resistance. The face seal surface features a step cut, making assembly easy and improving conformity to the cylinder bore at low pressure. Due to its excellent wear resistance and anti-extrusion properties, it is suitable for applications that pass through pressure ports. 【Features】 ■ Usable for applications passing through port holes ■ High pressure capability ■ Static load retention capability ■ Excellent wear and scratch resistance ■ Replaceable piston rings for double-acting telescopic cylinders ■ Easy assembly due to the chamfering of the seal face and energizer shape ■ Excellent sealing performance in both static and dynamic conditions Hallite is a group company of Michelin.

Hallite 754 consists of a robust and wear-resistant thermoplastic elastomer face seal, preloaded with an NBR O-ring. The material of the face seal is made from high-quality polyester as standard, with many material options available to extend usage conditions. Due to the narrow width of the seal groove, it can also be used with narrow pistons. 【Features】 ■ Excellent position holding capability under load conditions ■ Low starting friction and low operating friction levels ■ Excellent wear resistance ■ High resistance to contamination ■ Quick restoration to original size after face seal assembly ■ Compatible with most operating fluids ■ Accommodates a relatively wide range of surface roughness ■ Optimal for use with Hallite '506', '533', or '87' wear rings Hallite is a group company of Michelin.

Hallite 755 is a durable and abrasion-resistant thermoplastic elastomer face seal with a square cross-section NBR expander pre-loaded. The material of the face seal is made from high-quality polyester as standard, with many material options available to extend usage conditions. Due to the narrow seal groove width, it can also be used with narrow pistons. 【Features】 ■ Excellent position holding capability under load conditions ■ Low starting friction and low operating friction levels ■ Excellent abrasion resistance ■ High resistance to contamination ■ Quick restoration to original size after face seal assembly ■ Compatible with most hydraulic fluids ■ Suitable for relatively wide surface roughness ■ Optimally used with Hallite 506, 533, or 87 wear rings Hallite is a group company of Michelin.

Hallite 764 is ideal for double-acting applications where it is necessary to minimize leakage during operation, comparable to single-acting seals, thanks to its advanced face design. Hallite 764 consists of a robust, wear-resistant thermoplastic polyurethane face seal, equipped with an NBR O-ring. The narrow seal groove width allows for the use of narrow pistons. 【Features】 ■ Performance comparable to single-acting seals despite being a double-acting seal ■ Enhanced sealing performance during operation and at rest due to cutting-edge face design ■ Excellent wear resistance and anti-extrusion properties ■ High resistance to contamination ■ Quick restoration to original size after face seal assembly ■ Compatible with most hydraulic fluids ■ Accommodates a relatively wide range of surface roughness ■ Best used with Hallite 506, 533, or 87 wear rings Hallite is a subsidiary of the Michelin Group.

Hallite 770 is a robust, self-lubricating thermoplastic elastomer face seal configuration pre-loaded by a rectangular cross-section NBR expander. The standard material is suitable only for hydraulic mineral oil applications. Other material options are available for water-based (HFA and HFB) fluids and synthetic esters (HEES). For intermittent single-acting applications and specific sizes, it is recommended to use Hythane 181 for the face seal material. 【Features】 ■ Low starting friction and low operating friction ■ Excellent wear resistance ■ Improved resistance to contamination ■ Rapid shape recovery after assembly ■ Compatible with a wide range of surface finishes ■ Best used with Hallite '506', '533', or '87' wear rings Hallite is a subsidiary of the Michelin Group.

Hallite 775 is designed for two applications: one for standard O-ring grooves and the second for O-rings with two backup ring grooves. With its advanced profile design, Hallite 775 features a single-acting function, making it ideal for double-acting applications where minimizing dynamic leakage is essential. It consists of a robust polyurethane face seal that is pressed against a rectangular cross-section NBR expander, providing the necessary compressive force. The standard material is Hythanele 361, suitable for hydraulic mineral oil applications. **Features** - Double-acting seal with single-acting function - Unique profile design enhances dynamic and static sealing - Excellent wear resistance and anti-extrusion properties - Improved resistance to contamination - Rapid shape recovery after assembly - Compatible with a wide range of surface finishes - Best used with Hallite 506, 533, or 87 wear rings Hallite is a group company of Michelin.

Hallite 780 consists of a nitrile rubber seal, two split support rings, and two split L-shaped wear rings on both sides of the seal. The nitrile rubber seal is highly wear-resistant and is designed with multi-lips to minimize friction at low pressure while efficiently performing dynamic sealing. It features a simple groove design that makes assembly easy. 【Features】 ■ Excellent position retention under pressure ■ Extremely high performance in various applications using hydraulic oil ■ Compatible with various tube surface finishes ■ Superior wear resistance ■ Low friction Hallite is a group company of Michelin.

Hallite 606 is designed to interfere with the grooves of the seal housing. The outer dynamic lip is shorter and is designed to be more robust to improve sealing performance and compression set characteristics compared to conventional symmetrical U-rings. When used in conjunction with a backup ring of appropriate thickness, it can also be used for heavy-duty applications. The sealing lip is cut at an angle to provide optimal sealing performance. It is molded from Hallite's high-performance polyurethane, Hythane 181, making installation easy and providing excellent low-temperature performance. 【Features】 ■ General-purpose seal ■ Robust design ■ Excellent wear resistance ■ Functions properly over a wide temperature range, with significant effectiveness even at low temperatures ■ Easy to install Hallite is a group company of Michelin.

Hallite 659 provides dry seal solutions for light and medium-duty applications. The secondary seal lip, positioned behind the primary seal lip, enhances the stability of the seal within the piston. The dynamic lip on the outer diameter is short and robustly designed to improve sealing performance and compression set characteristics compared to traditional symmetrical U-rings. Molded from Hallite's high-performance polyurethane, Hythane 181, it offers excellent low-temperature performance and ease of installation. 【Features】 ■ Robust design ■ Excellent wear resistance ■ Seal stability ■ Functions properly across a wide temperature range, highly effective even at low temperatures ■ Protection of the primary seal lip ■ Easy installation Hallite is a subsidiary of the Michelin Group.

The Hallite 500 series offers three profiles of single-acting seals (511, 512, 513), covering most applications from mobile hydraulic equipment to industrial cylinders. Models 511, 512, and 513 have been well-proven in the field and are standard equipment for many leading cylinder and OEM manufacturers worldwide. The 500 series is manufactured from polyurethane as standard, with an NBR O-ring installed. Other materials are also available to address extreme temperature and fluid variation impacts. 【Features】 ■ Excellent scratch resistance ■ Good sealing lip conformity ■ Precisely trimmed lip ■ Easy installation Hallite is a group company of Michelin.

Hallite 601 provides excellent sealing performance for light and medium-duty applications. Manufactured from Hallite's high-performance polyurethane, Hythane 181, it offers ease of assembly and excellent low-temperature performance. The 601 is symmetrical, making it ideal for single-acting rod and piston applications. 【Features】 ■ Versatile seal ■ Excellent abrasion resistance ■ Good lip conformity ■ Superior heat resistance ■ Precisely trimmed lip ■ Easy to install Hallite is a subsidiary of the Michelin Group.

The Hallite unitized piston 720 is a cost-effective alternative to traditional piston assemblies that require separate installation of seals and wear rings. By molding the wear ring material to the outer diameter of the piston, a very tight fit between the piston and the cylinder bore is achieved. The steel piston body is machined to precise dimensions. 【Features】 ■ Maximum bearing width relative to piston width ■ Compatible with many cylinder bore finishes ■ Improved resistance to lateral loads ■ Reduced fluid contamination ■ Minimizes metal-to-metal contact, extending lifespan ■ Compact piston design allows for extended stroke and reduced cylinder length ■ Improved supply chain management through reduced warranty claims, increased manufacturing capacity, and reduced inventory Hallite is a group company of Michelin.

Hallite 605 is designed to interfere with the seal housing groove and features a secondary lip. The secondary seal lip, positioned behind the primary seal lip, enhances the stability of the seal within the gland. The inner dynamic lip is shorter and, compared to conventional symmetrical U-packings, is more robust, improving sealing performance and compression set characteristics. It is molded from Hallite's high-performance polyurethane, Hythane 181, making installation easy and providing excellent low-temperature performance. It covers a range that includes most standard housings used in Europe, North America, and Asia. 【Features】 ■ Versatile rod seal ■ Robust design ■ Excellent wear resistance ■ Improved seal stability ■ Effective across a wide temperature range, performing well even at low temperatures ■ Protection of the primary seal lip ■ Easy installation Hallite is a group company of Michelin.

Hallite 620 is made of polyurethane and operates with a high-quality O-ring built in. The sealing lip is trimmed at an angle to optimize the sealing performance of the rod. Hallite 620 is designed to interfere with the groove of the seal housing and the secondary lip. The secondary sealing lip, positioned behind the primary sealing lip, enhances the stability of the seal within the gland. At zero or low pressure, the O-ring increases sealing force and prevents leakage. Under most conditions, as pressure rises, the sealing force increases, ensuring the full operation of the lip by the O-ring. Combining these features improves both lifespan and sealing capability. 【Features】 ■ Excellent low-temperature properties ■ Improved shock load resistance ■ Low friction ■ Enhanced sealing stability ■ Protection of the primary sealing lip ■ Easy installation Hallite is a group company of Michelin.

Hallite 621 features a uniquely profiled NBR energizer that ensures the precisely trimmed primary seal lip maintains contact even in unpressurized or low-pressure situations, while also providing an effective seal under high pressure. To withstand lateral loads and extreme pressure peaks, it is equipped with an acetyl backup ring, even with protruding gaps. The rod seal of Hallite 621 is molded from Hythane 181, a high-performance polyurethane, which allows for easy installation and excellent low-temperature performance. 【Features】 ■ High pressure and shock load capability ■ Low temperature characteristics ■ Low friction ■ Improved seal stability ■ Protection of the primary seal lip ■ Easy installation Hallite is a group company of Michelin.

Hallite '622' improves the stability of the seal within the gland due to the secondary sealing lip located behind the primary sealing lip. The unique profile of the NBR energizer ensures that the precisely trimmed primary seal lip maintains contact even in no-pressure or low-pressure situations, while providing adequate sealing performance under high pressure. The rod seal of Hallite '622' is molded from Hythane 181, a high-performance polyurethane, which allows for easy installation and excellent low-temperature performance. 【Features】 ■ High pressure and shock load capability ■ Low temperature characteristics ■ Low friction ■ Improved seal stability ■ Protection of the primary seal lip ■ Easy installation Hallite is a group company of Michelin.

Hallite 658 features a secondary sealing lip behind the primary sealing lip, which enhances the stability of the seal within the gland. Hallite 658 is designed to replace O-ring grooves with one backup ring, providing a higher level of sealing performance and durability without changing the seal groove. It is molded from Hallite's high-performance polyurethane, Hythane 181, which ensures easy installation and excellent low-temperature performance. 【Features】 ■ Compatible with 1 backup ring + O-ring groove ■ Low friction ■ Improved sealing performance ■ Seal stability ■ Protection of primary sealing lip ■ Easy installation Hallite is a group company of Michelin.

It protects the primary seal from shock pressure loads and high-frequency pressure spikes within the hydraulic system. While suppressing pressure spikes, it allows oil to pass through to the rod seal. Hallite 653 is a patented product (European Patent No. 0427554BI, U.S. Patent No. 5088747) that pumps pressure back into the system to prevent pressure buildup between the rod seal and the buffer seal. The 653 single-acting rod buffer seal is designed to be used in combination with high-performance rod seals such as Hallite 605 and 621. The rod seal of Hallite 653 is molded from Hythane 181, a high-performance polyurethane, ensuring easy installation and excellent low-temperature performance. **Features** - Pressure buildup prevention function - Compatible with common PTFE buffer seal grooves - Wide temperature range compatibility - Long service life - Easy installation Hallite is a group company of Michelin.

The Hallite Wiper 520 features a wiper lip design that maintains contact with the rod surface, allowing it to remove any contaminants such as mud, except in heavy-duty applications. The outer diameter of the seal incorporates a crush lip that provides an interference fit with the housing, along with a face bead to prevent the crush lip from snagging on the corners of the housing. These features help prevent the ingress of contaminants into the groove. The rib formed on the inner diameter enhances the stability of the wiper and helps prevent the possibility of blowout due to trapped pressure between the wiper and the main rod seal. The Hallite Wiper 520 is molded from polyurethane to maximize wear resistance and performance. 【Features】 ■ The crush lip and face bead design provide effective sealing with the housing ■ The rib releases trapped pressure and improves stability ■ Excellent cost-effectiveness Hallite is a group company of Michelin.

Hallite 521 Wiper: The inch size maintains contact with the rod's surface by increasing the ratio of the wiping lip, effectively removing contaminants. We offer a wide range of Hythane polyurethane and polyester materials that are best suited for your application needs. 【Features】 ■ Precision trimming ■ The crush lip and face bead design provide effective sealing to the housing ■ Excellent abrasion resistance ■ Long lifespan Hallite is a group company of Michelin.

Hallite 820 is developed for use in harsh environments with severe contamination, particularly in agricultural, off-highway, and forestry equipment. Its unique feature is the Umbrella Wiper Technology, which includes a protective debris guard flap on the wiping lip that completely covers the ground housing, preventing the water/slurry accumulation common with traditional wipers. It is molded from Hallite's high-performance polyurethane, Hythane 251, making installation easy and providing excellent low-temperature performance. **Features** - High-precision trimming wiper lip - Most D wiper housings can be retrofitted - Particularly effective for vertically mounted cylinders - Follows rod deflection due to lateral loads - Compatible with Hallite 520 wipers - Sharp wiping lip scrapes off heavy dirt and protects the rod sealing system - Umbrella Wiper Technology protects the housing from contamination and reduces moisture ingress Hallite is a group company of Michelin.

The Hallite 842 features a wiping lip equipped with a protective debris guard flap that completely covers the gland housing, preventing the trapping of water and slurry commonly found in traditional wipers, thanks to its "Umbrella Wiper Technology." By reducing corrosion and preventing dirt from entering the grooves of the wiper housing and the hydraulic cylinder gland, it protects the hydraulic system and extends its lifespan. It is molded from Hallite's high-performance polyurethane, Hythane 181, making installation easy and providing excellent low-temperature performance. 【Features】 ■ High-precision trimming wiper lip ■ Protects the housing from contamination with Umbrella Wiper Technology ■ Excellent wear resistance and long lifespan ■ Easy assembly

Hallite 860 is a single-lip metal case wiper designed to be press-fitted into open groove housings for a wide range of applications. The polyurethane wiping element, precisely trimmed, is firmly bonded to a rust-treated metal case. Hallite 860 is available in sizes suitable for ISO6195 Type B housings and also accommodates standard housings in the Asian region. 【Features】 ■ Precisely trimmed wiper lip ■ Sharp wiper lip scrapes off heavy contamination and protects the rod sealing system. ■ Rust treatment applied to the metal case ■ Usable for a wide range of applications Hallite is a group company of Michelin.

The design of the Hallite 862 polyurethane wiping lip follows the lateral movement of the rod, effectively removing large amounts of accumulated dirt. The precisely trimmed polyurethane wiping lip is securely bonded to a rust-treated metal case. The Hallite 862 wiper is suitable for dirty environments. It is available in various sizes suitable for standard inch wiper grooves in the United States. 【Features】 ■ Wiper lip with precise trimming ■ Sharp wiper lip scrapes away heavy contamination, protecting the rod sealing system ■ Rust treatment applied to the metal case ■ Usable for a wide range of applications Hallite is a group company of Michelin.

The Hallite wear ring in size 506 inches is manufactured with very strict tolerances, providing wear ring solutions for applications involving reciprocating motion, oscillating motion, and low-speed rotational motion. The design features fine dimples on the surface of the wear ring, which capture fluid and incorporate lubrication into the wear ring. This results in smooth operation and a long lifespan. It is compatible with a wide range of fluids, including mineral oils, water-soluble fluids, and phosphate esters. 【Features】 ■ Manufactured to strict tolerances ■ Off-the-shelf bearings cut to size or customer specifications are available ■ Supply in coil length and flat coil is possible ■ Low friction Hallite is a group company of Michelin.