News, guides and announcements
Geared Motor or Bare Gear Unit: Which to Order and Why
Our R, F, K and S series are sold either as a bare gear unit or as a geared motor with a flanged AC motor. What the motor decides at the factory, what goes on the order line, and when bare is the right answer.
Read more →Gear Reducer Maintenance: Oil, Mounting Position and Checks
What our reducer catalogues actually specify about upkeep: why the mounting position fixes the oil fill and the breather, how to run the thermal-capacity check, the per-series rules, and what you must ask us for.
Read more →Worm Gear Reducer Selection: S Series vs K Series Right-Angle
Two machines answer the search for a worm gear reducer: the S series helical-worm unit and the SWL screw jack. How to tell them apart, when to choose S over K, and how to size the seven S frames.
Read more →Conveyor Gearbox Selection: Sizing a Belt Conveyor Drive
How to pick a conveyor gearbox from belt speed, drum diameter and absorbed power rather than from a series name, with the torque, ratio, mounting and thermal-capacity figures from our own catalogues.
Read more →Bevel Gearbox Guide: Choosing a T Series Right-Angle Gearbox
When to use a spiral bevel gearbox instead of a right-angle reducer, how the ten T series sizes compare, and how to read the shaft arrangement, ratio and mounting position into one model code.
Read more →Cement Bag Making Machine: Specifying a Valve Bag Line
What a cement bag making machine fixes upstream: the YF-HKZ-600 valve bag line at 350-550 mm fabric roll and 500-900 mm bag length, and the looms that match it.
Read more →Screw Jack Selection Guide: Sizing an SWL Worm Gear Jack
How to size a screw jack: lifting force, travel, P or M worm ratio, self-locking, the 20% duty limit, and linking up to eight SWL jacks from one drive.
Read more →Gear Reducer Manufacturer in Zhejiang: How to Check a Supplier
Seven checks that separate a real gear reducer manufacturer from a trading agent, each answered with Yanfeng Group's own figures: factory, in-house gear machining, the nine series we build, certifications and patents.
Read more →PP Spunbond Nonwoven Production Lines: S vs SS vs SMS vs SSS
What S, SS, SMS and SSS mean on PP spunbond nonwoven production lines, which layer structure suits which end product, and how to specify the line for your plant.
Read more →Automatic Packaging Machines: Blister Packing vs Cartoning
Our three automatic packaging machines compared: DPP-260 blister packer, KDZ-130 cartoner and KDZ-300 box packer, with speed, package size, power and weight.
Read more →Top 5 Paper Cup Making Machines: Speed, Cup Sizes and Line Set-up
Yanfeng Group's five paper cup making machines ranked by cups per minute, cup size range and automation, with product-page specs and a line set-up guide.
Read more →Top 7 Auxiliary Machines for Woven Bag Plants, Ranked
The seven auxiliary machines for woven bag plants that most affect output and material cost, ranked with product-page figures: granulator, crusher, mixer, chiller, feeder, baler.
Read more →Top 5 Film Extrusion and Bag Making Machines: Specs Compared
The five film extrusion and bag making machines we build, ranked by film width, output and layers, with the figures listed on our product pages for liner film, shopping bags and agricultural film.
Read more →Top 5 Winding Machines for Flat Yarn: Cam vs Magnetic Winders
Five winding machines for flat yarn ranked by winding speed, spindle count and tension control, with the listed figures for our S-STL-II cam winders and S-SDC magnetic winders.
Read more →Top 6 Bag Cutting and Sewing Machines for PP Woven Sacks
Six bag cutting and sewing machines from Yanfeng Group ranked by automation, output in bags per minute and bag types, with catalogue specs and a buying guide.
Read more →Top 6 Printing Machines for Woven Bags: Flexo, Gravure and Offset
Six printing machines for woven bags ranked by colour count, printing width, speed and fit for PP fabric versus film, with the listed figures for each Yanfeng Group model.
Read more →Top 6 Flat Yarn Extrusion Lines for PP Woven Bags Compared
Six flat yarn extrusion lines from Yanfeng Group ranked by output: 450 m/min YF-GSPL and 280 m/min YF-SPL lines and SJ-FS recycled-material tape drawing machines compared.
Read more →Top 6 Lamination Machines for Woven Bags: Width and Speed
Six Yanfeng Group lamination machines for woven bags ranked by coating width, line speed and versatility, with catalogue figures and a six-step buying guide.
Read more →Top 7 Circular Loom Machines for PP Woven Bags: Specs Compared
Seven of our circular loom machines for PP woven bags ranked by width range, rated speed and versatility, with lay-flat width, r/min, output and power for each.
Read more →Top 7 Industrial Gear Reducer Series: R, F, K, S, P, H/B, ZDY
Seven of our industrial gear reducer series ranked by torque, power and application breadth, with catalogue power, ratio and torque figures for each on one page.
Read more →How to Select a Gear Reducer: R, F, K and S Series Explained
A practical method for choosing a gear reducer or helical geared motor: shaft arrangement, ratio, service factors f1 f2 f3, mounting position, and the power and torque ranges of Yanfeng's R, F, K, S, P and H/B series.
Read more →Lamination Machine for Woven Bags: Coating vs Inner Liner
Which lamination machine a woven bag plant needs: extrusion coating, film or paper lamination, and PLC-controlled reverse (inner-liner) lamination, with widths, speeds and power from Yanfeng's catalogue.
Read more →Circular Loom Buyer's Guide: 4 vs 6 Shuttles, Suspension vs Cam
How to choose a circular loom for PP woven bags: shuttle count, suspension versus little-cam drive, lay-flat width, speed on virgin and recycled yarn, and the specifications of every Yanfeng model.
Read more →PP Woven Bag Machine Guide: Every Machine in a Production Line
Which PP woven bag machines make up a complete production line, how they connect, and the outputs, power and floor space to expect at each stage, with Yanfeng's catalogue figures.
Read more →Announcement on soliciting opinions on the "Made in Zhejiang" standard for "Suspended Plastic Circular Loom" (draft for soliciting opinions)
To all relevant units and individuals: In accordance with the relevant requirements of the "Regulations on the Management of Group Standards" (GBWJL [2019] No. 1), we hereby solicit public opinions on the "Made in Zhejiang" standard (draft for comments) for "S
Read more →Yanfeng Group sincerely invites you to attend the PTC ASIA 2019 exhibition
Dear customers/partners, it is our great honor to invite you to attend the 24th Asia International Power Transmission and Control Technology Exhibition. The event will be held from October 23rd to 26th, 2019, at the Shanghai New International Expo Center (No.
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