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Description
50W CO2 Laser Tube with Metal Head for Laser Engraver & Cutter Machine[Not compatible with Polar]Replace your old laser tube and optimize your laser engraver and cutter machine's performance with OMTech's highly efficient 50W CO2 laser tube! Made of tough borosilicate glass, this 850 mm (33. 4") long 50 mm (2") wide CO2 laser tube is superior to its competitors as it incorporates gold catalyst nanocoating and high end German technology into the engineering of its glass tube construction, making it more durable to withstand high temperature and
Replace your old laser tube and optimize your laser engraver and cutter machine's performance with OMTech's highly efficient 50W CO2 laser tube! Made of tough borosilicate glass, this 850 mm (33.4") long 50 mm (2") wide CO2 laser tube is superior to its competitors as it incorporates gold catalyst nanocoating and high-end German technology into the engineering of its glass tube construction, making it more durable to withstand high temperature and pressure. It is cost-efficient yet dependable with up to 6,000 hours of service life. The built-in tubing and ports on this laser engraver replacement tube allow easy connection to your water chiller or pump and efficient cooling during operation. To meet your needs, we offer a variety of laser tubes from 40W to 150W. Get your replacement laser tube from OMTech and start enjoying its superior quality and efficient performance today!
Features
- POWERFUL LASER TUBE: OMTech's 50W CO2 laser tube, with tempered borosilicate glass, premium II-VI infrared lens, gold catalyst coating, and 6,000 hour long service life, ensures powerful and stable laser beam for optimal performance
- PRECISION MASTERPIECES: Achieve precise cuts using your laser engraver and cutter machines with this single-mode laser cutter tube, which features a 4 mm focused beam spot and an American II-VI infrared lens for reduced light attenuation
- SAFE OPERATION: With integrated water tubing and ports, our laser engraver replacement tube allows for efficient cooling and easy connection to a water pump or water chiller, while the hermetically sealed borosilicate glass case offers exceptional durability
- WIDE APPLICATION: This 850 mm (33.4") long 50 mm (2") wide laser tube operates at 18kV and 4mA for engraving acrylic, cardboard, ceramics, fabric, glass, leather, paper, stone, wood, and more
- SATISFICATION GUARANTEED: Order this laser engraving machine tube from OMTech today and enjoy fast US-based shipping, easy hook-up with preinstalled connection wires and ports, an industry-leading 9 month warranty, and ever helpful customer service and tech support
Specifications
- Material: Borosilicate Glass, Metal
- Laser Tube Type: CO2-Filled Glass
- Cooling Method: Water
- Rated Power: 50W
- Length: 33.4 in. (850 mm)
- Diameter: 2 in. (50 mm)
- Wavelength: 10,600 nm
- Beam Quality: 1.3 m2
- Max. Beam Diameter: 0.2 in. (4 mm)
- Operating Voltage: 18kV
- Operating Current: 4mA
- Rec. Water Temperature: 60-75°F (15-25°C)
- Expected Lifespan (MTTF): 6,000 hr.
- Net Weight: 2.6 lb. (1.2 kg)
- Warranty: 9 mo.
Package List
- 1x CO2 Laser Tube
- 1x Instructions
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Shipping Notes
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- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2003 reviews
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Product Reviews
★★★★★ 5
A Slim Book with a Big Message
The book is an attempt, Keller writes, to connect a person's Christian faith with the desire to help people in need and do justice in all aspects of one's life. He is writing for four groups of people, he says. These are:
-- Those, especially the young, who are active in volunteering and want to help the poor but their concern does not affect how they spend money or plan their careers.
-- Those who don't see, as Jonathan Edwards said, that when the Spirit enables us to understand what Christ has done for us, "the result is a life poured out in deeds of justice and compassion for the poor."
-- Younger evangelicals who have expanded their mission to include social justice along with evangelism.
-- People like the atheist Christopher Hitchins who believe that religion "poisons everything."
This book, Keller writes, is for "the orthodox (Christian) to see how central to the Scripture's message is justice for the poor and marginalized. I also want to challenge those who do not believe in Christianity to see the Bible not as a repressive text, but as the basis for the modern understanding of human rights."
Keller spends the early parts of his book discussing how justice for the poor, the immigrant, the widow and orphan was central to the concept of mercy (in Hebrew, chesedh), justice (mishpat) and righteousness (tzadeqah). Mercy has to do with aligning our attitude with that of a merciful God. Justice is aligning our actions -- equitable dealings with people -- with a just God's. Righteousness in the Hebrew context has more to do with right relationships than obeying a set of rules, as modern Christians often think of it.
Someone who is "right with God (is) therefore committed to putting right all other relationships in life." (Alec Motyer) Righteousness is "day to day living in which a person conducts all relationships in family and society with fairness.While tzadeqah is primarily about being in a right relationship with God, the righteous life that results is profoundly social. (See Job 29:12-17, 31-13-28.
Keller details the Hebrew law's provision for exercising justice. These are:
-- Shemitta, or release. The practice of the Sabbath year, every seventh year releasing people from debts or servitude. Deut. 15:1-2
-- Gleanings. The practice of not harvesting fields to their borders. Keller suggests that modern businesses could imitate this practice by not maximizing profits, thus giving price relief to their customers, and not paying workers the lowest possible wages. Leviticus 19:9-10, 23:22
-- Tithing for the priests and the upkeep of the temple. Every third year the tithe was put in public storehouses for the poor, "the aliens, the fatherless, and the widows." Deut. 14:28-29. This makes me think that churches should practice this in some form by systematically committing a portion of its receipts to serving the poor and needy.
-- Year of Jubilee. The practice of every 49th or 50th year of forgiving debts and returning land to its ancestral owner. Leviticus 25:10, 23, 27:21.
These practices helped meet the needs of the poor and helped prevent permanent cycles of poverty.
The three causes of poverty, according to the Law are oppression, calamity and personal moral failure. The biblical emphasis is usually on the larger structural factors -- corruption, oppressive economic systems and natural disasters. The exercise of justice, however, never distinguishes between the three. That is, no matter why a person is poor, the righteous person should care for him.
Well, that's the Old Testament,, some might say. But Jesus showed the same concern for the poor and disadvantaged, if not more so. His response to John in Matthew 11:4-5, and the beginning of his ministry in Luke 4. As Eugene Peterson writes in The Message, the Word became flesh and moved into the neighborhood. He identified himself with the poor and showed special concern for children, aliens, women.
Jesus and the prophets all "leveled the charge that while the people attended worship, observed all religious regulations and took pride in their biblical knowledge, nevertheless they took advantage of the weak and vulnerable."
Vulnerable people need three levels of help -- relief, development and social reform. Relief is the immediate problem (paying the rent, for instance); development is to help then move beyond dependency (job training); social reform is correcting systemic injustice (redlining).Social reform likely requires the creation of extra-church or parachurch organizations. Churches also can partner with existing organizations or churches that operate in vulnerable populations.
Evangelism and social justice "should exist in an asymmetrical, inseparable relationship. Evangelism is the most basic and radical ministry possible to a human being ... not because the spiritual is more important than the physical, but because the eternal is more important than the temporal. If there is a God, and if life with him for eternity is based on having a saving relationship with him, then the most loving thing anyone can do for one's neighbor is help him or her to a saving faith in that God, Keller writes.
Doing justice is inseparably connected to preaching grace. One way is that the gospel produces a concern for the poor. The other is that deeds of justice gain credibility for the preaching of the gospel.
This book is a slim one that carries a heavy message. It challenges us comfortable churchgoers to examine our community and ask whether we are of any importance to the wider community. If our "church" ceased to exist, would anyone miss us? What are we doing in obedience to God's commands to serve the poor, the widow, the orphan, the prisoner, the hungry? There is a lot here to reflect on and for a small group(s) to discuss and apply. Unfortunately, I contacted the publisher and there is no accompanying study guide.
Keller is pastor of Redeemer Presbyterian Church in New York City.
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Reviewed in the United States on October 12, 2011
★★★★★ 4
Four Stars
Format: Paperback
Interestin.
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Reviewed in the United States on November 15, 2017
★★★★★ 5
Taste good
These are great
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Good.
These work really well. Price is great. My kids have not complained about the taste or any issues with chewing them. No sleep issues or grogginess upon waking.
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Reviewed in the United States on May 7, 2025
★★★★★ 5
Great product. Works well and tastes good too!
I purchased this melatonin for my five year old. Not only is she a terrible sleeper she’s extremely particular about how things taste. This product works wonderfully, and tastes great too! It works quickly to help my child fall asleep, within 10 minutes, and now they are able to sleep through the night without any issues. I highly recommend this product for parents looking for a natural way to help their child sleep better.
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Reviewed in the United States on August 6, 2024