Screw Jack Manufacturer 1.5–200 Ton (Mechanical & Spiral Jacks)
JackMaker manufactures mechanical screw jacks for industrial-supply distributors, rail and construction contractors and vehicle-equipment dealers: 1.5–2 ton spiral jacks for cars and vans, and the QL series of 3.2–200 ton mechanical screw jacks that hold a load indefinitely without hydraulic oil. Machined, assembled and load-tested in our own factory in China.
-
No hydraulics: holds load indefinitely, works in any orientation
-
QL series 3.2–200 ton for rail, bridges, machinery
-
Spiral jacks 1.5–2 ton for vehicle kits
-
Ratchet handle operation
- MOQ
- from 10 pcs
- Lead time
- from 1 day
- Certification
- TÜV GS · CE · ISO 9001
- Testing
- 100% pressure tested
Types and who they are for
The screw jacks range by construction, capacity and the buyers each type suits.
| Type | Capacity | What is different | Best for |
|---|---|---|---|
| Spiral jack | 1.5–2 T | Compact vehicle jack, ratchet handle | Vehicle tool kits, retail |
| Mechanical screw jack (QL) | 3.2–200 T | Acme screw, cast body, ratchet lever, holds load without creep | Rail, bridge, machinery, mining |
What buyers inspect
The details importers check first when they sample screw jacks.
-
Safety overload valve on every unit
A factory-set bypass valve stops the ram when the rated load is exceeded – fewer warranty claims and no bent rams in the field.
-
Heavy-gauge base and cylinder
Bases are stamped from thick steel plate and cylinders are precision-honed, so seals last longer and oil stays where it belongs.
-
Chrome-plated ram and pump piston
Hard chrome resists rust and scoring in humid warehouses and workshops, keeping the lift smooth for years, not months.
-
Serrated saddle
Cross-hatched saddles grip the lifting point instead of sliding on greasy chassis rails – the first thing inspectors check.
-
Electrostatic powder coating in-house
Our own powder-coating line gives consistent colour batch after batch, and lets you order your brand colour without paying for outside finishing.
-
Clear rating labels in your language
Capacity, warnings and your logo are printed to your artwork – GS/CE or ASME PASE style label layouts available.
How to choose screw jacks for your market
The questions our sales engineers ask before they quote.
-
Hydraulic or mechanical
Hydraulic jacks lift faster; mechanical screw jacks hold a load for days without creep, work sideways and never leak. Rail, bridge and machinery buyers specify screw jacks for supporting, not just lifting.
-
Capacity and stroke
QL screw jacks are chosen by rated load and screw stroke; both are in each model table. Pairs and sets of four are common for levelling machinery.
Who is sourcing these
-
Auto-parts and tool distributors
Mixed containers across tonnages, brown-box or retail packaging, repeat orders on a schedule.
-
Private-label tool brands
Your colour, logo, manual and colour box. We have produced for US and German brands since the 1990s.
-
Workshop-equipment dealers
Garage, tyre-shop and fleet-maintenance customers who need GS/CE documentation and spare-part support.
-
Equipment rental companies
Welded, heavy-duty variants that survive being thrown in a van every day.
-
Industrial and rail buyers
Toe jacks, screw jacks and 50–200 ton bottle jacks for machinery moving, track work and construction.
Why source screw jacks from JackMaker
Factory, not trading company: we machine, assemble, coat, test and pack every jack in our own plant in Haiyan.
- Since 1978 Making jacks in Haiyan, China
- 3,000,000 Jacks per year
- 53,000 m² Plant, own powder-coating line
- 23 engineers Technical team for OEM projects
- TÜV GS · CE Certified models
- ISO 9001 Certified quality system
Customise screw jacks for your brand
Every option below is produced in-house. Minimums are per model unless stated; artwork approval and a pre-production sample come before mass production.
Quality control and compliance
Tested before it ships – inspection points from incoming steel to the packed carton.
- Incoming steel plate and seal material inspection
- Weld and machining checks during production
- 100% pressure test at rated load before packing
- Overload test on samples from every batch
- Release-valve and bypass-valve function test
- Coating thickness and adhesion check
- Label, manual and packaging check against your artwork
- Pre-shipment inspection with SGS / TÜV / BV on request
Applicable standards
A test report accompanies each shipment on request. Certificate PDFs and covered-model lists are on the certifications page; the full test routine is described under quality control.
Request a quote for screw jacks
FOB pricing, a spec sheet and a container loading plan within 12 hours, Mon–Sat.
Frequently asked questions
Why choose a screw jack over a hydraulic jack?
A screw jack holds a load indefinitely without leak-down, can be used horizontally and needs no oil – the reasons rail, bridge and machinery buyers use them as supports.
What is the MOQ for screw jacks?
10 pcs per model; screw jacks are often ordered together with toe jacks and industrial bottle jacks.
What is the lead time?
Lead time is from 1 day; the largest QL sizes are built to order.
Do you supply test certificates?
Yes – load test certificates are available for the QL series on request.
Sourcing screw jacks?
Send your model list and quantities – FOB pricing, spec sheets and a container loading plan within 12 hours.