Mophorn 3500W Electric Demolition Hammer Heavy Duty Concrete Breaker 1400 BPM Jack Hammer Demolition Drills with Flat Chisel Bull Point Chisel (3500 W)

Si tiene mucha potencia

Many years ago my first job was working for a concrete company. I’ve spent many hours behind industrial jack hammers so perhaps this review will help your decision in purchasing this jack hammer.So for two hundred bucks I believe you’ll definitely get your monies worth. I used mine to break up a 70 year old driveway under a carport that had tree roots starting to break it beyond repair. The slab was approx. 4 yards worth of concrete.This machine gets hot but takes a while to get there. I’d take a 10-15 minute break every hour and place the hammer in front of a fan to help it cool off. I wanted to be sure not to burn it up. I broke the tip of both bits fairly quickly but it seemed to have no real effect on the hammer. Just had to bend over an extra inch or so.I’m 6’ tall and it’s hard standing upright while using this.IMPORTANT!!!! After my second hour of using the hammer I noticed on the ground a new looking allen head bolt directly underneath where I was working. I stopped immediately to check the hammer to see if said bolt fell out. Sure enough it had come from the hammer. I also noticed all the allen headed bolts located on the collar of the bottom of the hammer were either on the verge of coming out or extremely loose! So I’d advise before it’s first use make sure to tighten ALL FASTENERS on this machine! I’m not sure what would’ve happened if they all would’ve fallen out but I’m sure it wouldn’t have been pretty.There’s a site glass on the outside of the machine that tells you how much hydraulic oil is there. Besides the site glass is a sticker that advises to fill with hydrolic oil before first use. I did not have to fill it as it was already completely full.Anyway other than loose bolts this machine did exactly what I needed it to do. Saved myself about $600 in labor by busting up the old driveway.

Bought the Bauer Harbor Freight Jack Hammer for $400-$450 and within about 1 hour of use the motor seized. Returned it with/for an $80 restocking fee :(. Bought this (VEVOR brand) one on Amazon for $160 and filled the hydraulic oil reservoir with SAE 20W-50 and is running like a champ!!! Not only is this more powerful than the Bauer Harbor Freight jack hammer but is also lighter and cheaper. Helped me do an interior french drain in my basement with 3-6 inches thick concrete. Works really well and is still going strong. A big thankful thumbs up!!!!!!!

I owned a bosch electric jackhammer (the yellow one everybody knows) until it got stolen, last year. i bought this breaker because it cost the same as a bosch one day rental. worst case scenario, i'd return it if it was garbage. as it turned out, it worked pretty good...and my guys liked how light it was to use. the tool comes with a couple of replacement carbon brushes...don't lose them. after a few months of heavy duty, the tool stopped working. i swapped out the carbon brush and the tool worked. unfortunately, i went through both replacement brushes over a 6 month period. i notified the seller, and, while it took a few weeks, they sent me out several replacement brushes...for free. in the interim, i found other carbon brushes on amazon that looked like what i needed. i bought a few, and they worked, too (4pcs longlife 999044 Carbon Brush replacement for Hitachi 999044, S7-17/44, 614367-00). i liked this tool so much, i bought a 2nd one.

We decided to stop using our swimming pool. However, the removal cost was extraordinarily high, and the machinery required for extraction would have compromised our septic system. Therefore, we chose to convert the pool into a wildlife pond, as our family has two biologists passionate about enhancing our property's natural diversity. To make the pond look more realistic and save money, I took on the challenge of removing the pool's patio, which was made of slate mounted on a thick cement base reinforced with wire.Throughout two summers, I used this jackhammer intermittently. It was a reliable workhorse, consistently breaking up the thick concrete. To aid the project, I also used a pair of wire cutters to remove the reinforcing wire. Here is some additional information:1. The jackhammer is heavy and requires strength to hold and use.2. After some time, my main blade became dull. I found replacement blades on Amazon. https://www.amazon.com/dp/B08K2CM2PF?ref=ppx_yo2ov_dt_b_fed_asin_title3. I used an excellent set of earmuffs that I purchased on Amazon. Over time, loud noises can significantly damage hearing by destroying the cells in the inner ear that help convert sound waves into a nerve impulse that travels to the auditory region of the brain for interpretation. I have expertise in this area, as I taught Human Anatomy and Physiology at the university level for decades. Mitigating the impact of loud noise is critical if you value your sense of hearing.4. I used my leather gloves instead of the flimsy gloves that came with the jackhammer. I also wore my safety glasses and a dust mask.5. Several excellent YouTube videos describe this unit and show how to use it properly. I recommend reviewing them to ensure your safety and proper usage.6. You must add hydraulic oil to the jackhammer, as none is included with the unit. This process is straightforward. I purchased the oil on Amazon: https://www.amazon.com/gp/product/B09LQNFCPP/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1Finally, here are a few words about the manual. There is no excuse for a company that sells an excellent product to pair it with a low-value manual. The manual provides some safety information, but it was poorly prepared. It must offer more adequate usage directions and advice on care and maintenance.