FUJI Passenger Elevator Lift with Hydraulic Buffer
Smooth Rides. Strong Safety. Smart Prices.
Looking for a reliable, high-quality passenger elevator lift? FUJI passenger elevator with hydraulic buffer gives you smooth, quiet rides every time. Perfect for offices and hotels.
Why choose FUJI?
● Safe & Strong: Advanced hydraulic buffers for extra stability. No sudden drops. No loud noises. Just smooth up and down.
● Easy to Use: Simple controls. Works perfectly for kids, elderly, and everyone.
● Low Cost: Get a top-quality elevator without the high price. We keep costs fair.
● Fast Installation: Less waiting. More riding. Ready to use in no time.
No hidden fees. No cheap materials. Just a dependable elevator at a great price.
What is function of hydraulic buffer in passenger elevator lift?
Hydraulic buffer is very important for elevator safety. They soak up the force when an elevator car or counterweight falls out of control.
If elevator speeds up too much because of a problem (going over 115% of its normal speed). This buffer uses hydraulic oil to slow it down. It turns moving energy into heat, making elevator stop smoothly.
Compared to spring buffer, it has some good points:
● Smooth slowdown: They give a steady braking force. Stops aren't so sudden and uncomfortable.
● Self-resetting: After a crash, they go back. No need to fix them by hand.
● Good for fast elevator: High speed elevator often use hydraulic buffer. It going up to 1 m/s in traction elevator.
1. How to choose right hydraulic buffer for passenger elevator lift?
Think about these things:
● Rated load: Pick a buffer that can handle elevator car's heaviest load. Like 630 kg. Add 20% safety cushion.
● Speed: To slow elevator lift (0.5~1 m/s), go with fixed throttling buffers. To faster ones (1~4m/s), choose variable throttling types.
● Travel distance: The buffer's compression distance should follow national rules. Like 0.135V², where V is the normal speed.
● Space: See how deep elevator pit is and suggest compact buffers.
Example: A 1000 kg elevator at 1 m/s. We can pick a buffer that can take at least 1000 J of impact energy.
2. Which one is better for passenger elevator lift, hydraulic buffer or polyurethane?
Benefits of hydraulic buffer:
● Work well at faster speeds: polyurethane usually only works below 0.5 m/s.
● Can be used again and again. Saving money.
● Offer a smoother ride. It is good for hospitals and fancy apartments.
Benefits of polyurethane buffer:
● Don't need upkeep. It is great for elevators with light loads that aren't watched over.
● Cheap: About 30% cost of hydraulic buffer.
● Can handle cold temperature: It can work at -40℃. Hydraulic oil might freeze.
Tips:
● Use hydraulic buffer if the speed more than 0.5 m/s.
● Pick polyurethane if you're on a tight budget. Need it work in cold places.
3. What are usual problems for hydraulic buffer in passenger elevator lift?
Common issues:
● Leaking: Seals are worn out or the housing has cracks. Fix by replacing seals and adding more oil.
● Won't reset: Spring is broken or oil path is blocked. Take apart, clean, or swap out parts.
● Weird noises: Metal rubbing together because there's not enough oil. Add oil up to the marked level.
● Weak buffering: Oil has gone bad (cloudy or has water in it). Change all the hydraulic oil.
How to prevent problems:
● Do a full-load brake test every year.
● Keep the pit dry to stop rust.
● Always use parts from the original maker.
4. How long can hydraulic buffer be used?
It is usually made to last 10-15 years. But when you really need to replace them depends on how often they're used and loads heavy.
Example: hospital elevators might need new ones more often.
Signs need a new one:
● Not working well: If the elevator shakes a lot when it stops. If it takes too long to slow down. Like more than 0.1 second for a 1 m/s elevator.
● Damage: Rust on the piston rod. The cylinder is bent. Cracks in the welds.
● Oil problem: If the hydraulic oil turns milky white from water. It makes the damping force unstable.
Make sure it's installed straight, with no more than a 1/1000 tilt. If upgrade an old elevator lift, you might need to change how deep the buffer pit is to meet new rules.
5. How to fix oil leaks in hydraulic buffer?
Common reasons for leaks:
● Old seals: Put in new seals that are the same size. Use silicone grease when installing to stop them from warping.
● Scratches on the plunger rod: Smooth out small scratches with fine sandpaper. If the damage is bad, replace the chrome-plated rod. Need make sure the surface is smooth, ≤ 0.4 μm rough.
● Cracks in the oil cylinder: Fix by welding or get a new oil cylinder. It usually made of strong Q345B seamless steel pipe.
● Loose joints: Tighten with a torque wrench. Example: M16 joint needs 60 Nm of force.
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