Catalog excerpts
Shock Absorber Buffer
Open the catalog to page 1Flexibility Versatility Innovative Solutions OVERVIEW KOBA provides various solution to the customers for the shock absorption, anti vibration and rate control by advanced technology and accumulated experience. We design, manufacture and supply Shock Absorbers, Hydraulic Buffers, Viscoelastic Buffers, Hydro-Check, Rate Controls, Gas Spring and Special Dampers to the various industrial fields in domestic and overseas with constant research and development and reliable quality assurance system : aerospace, defense, port facilities, ship-building, heavy industries, factory automation, railway,...
Open the catalog to page 2APPLICATIONS ● Pick & place robotics ● Glass forming equipments ● Plastic bottle making ● Electronics / Semiconductor ● Automotive robotics & Transfer lines ● Assembling conveyors ● Material handling ● Printing machine ● Paper rolls ● Packing machinery ● Military ● Aerospace ● Cranes : Bridge & Trolley, Container, Overheads ● Steel mills : Slab ingot, Crushing, Turntable ● Elevator ● Railway : Coupler & Side Buffers, Fixed rail end stop, Friction stop ● Automated storage/Retrieved system ● Food/ Beverage ● Medical / Pharmaceutic
Open the catalog to page 3Hydraulic Shock Absorbers & Buffers Applications
Open the catalog to page 4Working Process Part machining Part Inspection Product Inspection
Open the catalog to page 5At a glance Adjustable type Shock Absorbers - KMA Series Recoil Force (N)
Open the catalog to page 6At a glance Self Adjusting type Shock Absorbers - KMS Series LONG STROKE TYPE
Open the catalog to page 7At a glance Adjustable type Shock Absorbers - KSA Series
Open the catalog to page 8At a glance Adjustable type Shock Absorbers - KHA Series
Open the catalog to page 9At a glance Hydro-Pneumatic Buffers - KHG Series Max Side Load Angle (°)
Open the catalog to page 10Max Side Load Angle (°)
Open the catalog to page 11At a glance Hydraulic Buffers - KHS Series Recoil Force (kN) Max Side Load Angle (°)
Open the catalog to page 12KCSC Series At a glance Stacker Crane Buffers - KCSC Series Max Side Load Angle (°)
Open the catalog to page 13KCSC Series At a glance Stacker Crane Buffers - KCSC Series Stroke (mm) S Max Side Load Angle (°)
Open the catalog to page 14KCSC Series Max Side Load Angle (°)
Open the catalog to page 15At a glance Visco-Elastic Buffer - KES Series Dyn. Reaction Force (kN)
Open the catalog to page 16Elasto-Fluid Heavy Duty Buffer - KVD Series Stroke (mm) S Rate Controls - KRC Series Max. Propelling Force (N)
Open the catalog to page 17At a glance Hydro-Check - KHC Series Speed Adjustment Range Max Load Angle From Axis (°) Feed Rate Limits (mm/s) Model (Push Type) Model (Pull Type) Model (Free Lock Type)
Open the catalog to page 181. Description -------------------------------------------------------------- (21) 2. Shock Absorber : Structure & Principle of Shock Absorber ------- (22) 3. Shock Absorber Model Selection ------------------------------- (24) 4. Shock Absorber How to Select Shock Absorber ----------------- (27) 5. Shock Absorber Instruction Manual ------------------------------- (35) 6. Shock Absorber KMA Series ------------------------------------------ (40) 7. Shock Absorber KMS Series ------------------------------------------ (53) 8. Shock Absorber KSA Series ------------------------------------------...
Open the catalog to page 19Shock Absorbers & Buffers KMA Series - Adjustable shock absorber with adjustment dial of 300 within 12 steps KMS Series - Self - Adjustable series with multiple orifice for soft stop of a broad range of impact mass KSA Series - High energy series for emergency stop as well permanent driven application KHA Series - Mid sized adjustable shock absorber for medium and heavy loads. KHG Series - For heavy duty application.2-step damping unit with special nitrogen gas chamber within the piston rod KHS Series - Small compact heavy duty buffer with customized orifices according application data KCSC...
Open the catalog to page 20Hydraulic Shock Absorbers As mechanical parts of operating machinery such as automated assembling systems, conveyors and safty devices for machine tools strive to increase operation speed and precision, more often the results shows increased noise, vibration as well damage to the machinery. To avoid decreasing safty and machine reliability typical products are used include rubber bumper, springs, cylinder cushion and industrial shock absorber. The adventage of using KOBA shock absorber : Longer life cycle of machinery due to reduction of shock and vibration. Higher operating speed - shock...
Open the catalog to page 21Hydraulic Shock Absorber 1. Shock Absorber consists of Body, Bumper Head, Piston Rod, Adjustment Dial, Lock Nut. 2. Body available with several thread options. 3. Bumper Head with integrated different cap material for noise reduction. 4. Piston Rod : Hard chrome plated or stainless steel 5. Adjustment Dial for stepless adjustment of damping strength. 6. Lock Nut for easy mounting Adjustment Dial Piston Rod Bumper Head Shock Absorber Internal structure Shock Absorber consists of Piston, Check Valve, Accumulator, Inner tube. Inner Tube Adjustment Dial Multi Orifice Return Spring Bumper Head...
Open the catalog to page 22Orifices Feature Single Orifice Single Orifice Type - called Dashpot structure offers progressive damping characteristic. Orifice mass Multiple Orifices ■Adjustable Pressure oil flow controled through several orifice offer linear deceleration by providing a constant shock force over the entire stroke - most efficiency. Multiple Orifices Picture shows characteristic of damping (A1 high velocity - low propelling force : B1 low velocity - high propelling force) Multiple Orifices mass Stroke
Open the catalog to page 23This is one kind of the non adjustable Multiple orifice types. This type has quick response and good efficiency for short stroke because the changing of orifice area is continuous. Short stroke means under 25mm (but KMS14-20 is not including in this type) Force Metering Orifice Shock Absorber Selection 1. Identification of following parameters : 1.1 Load weight (kg) 2. Steps to select the right Model 2.1 Check the conditions ■ Check how the object will hit the Shock Absorber : Horizontal motion, Vertical motion, Inclined motion, or rotary motion. With or without Propelling force ■ Check the...
Open the catalog to page 24Hydraulic Shock Absorbers 2.7 Check the total Energy per hour ET C. ■ Find the Total Energy per hour with cycle per hour and Total Energy per cycle and check it within the range of selected model's in Engineering Data in Catalog. ET C ≥ ET x C 2.8 Check the Effective Weight (We) ■ In the case of collision with Propelling Force, Check the Effective Weight (We). Especially you should check it in the case of low velocity (under 0.3m/s), We = ( 2 x ET ) / V2 [ The Calculated value of We should be within the range decsribed in Engineering Data in catalog.] In the case of collision without...
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